PoC: add Frogbot security workflows.

Author: ghorvathansys

.github/workflows/README_frogbot.md

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+# Frogbot security scan workflows
+
+see https://github.com/ansys-internal/ci-templates/pull/176
+
+## Status and TODO:
+
+- PoC to run Frogbot on github.com/ansys organization repositories
+- Connects to https://ansyscpp.jfrog.io SaaS instance - accessible from GitHub-hosted runners. This SaaS intance is temporary.
+- TODO: connect to https://artifactory.ansys.com - requires self-hosted runners with internal network access. Ideally through runner scale sets hosted on Ansys-maintained k8s.
+- TODO: run in container with verified Frogbot execution environment. Need package manager executeables.
+- TODO: verify Frogbot support and performance with Docker, Docker compose.

.github/workflows/frogbot-scan-pull-request.yml

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+name: "Frogbot Scan Pull Request"
+on:
+  pull_request_target:
+    types: [opened, synchronize]
+permissions:
+  pull-requests: write
+  contents: read
+  # [Mandatory If using OIDC authentication protocol instead of JF_ACCESS_TOKEN]
+  id-token: write
+jobs:
+  scan-pull-request:
+    runs-on: ubuntu-latest-4-cores
+    # container: 
+    #   # Official .NET SDK image with python3-virtualenv package installed. One-time manual creation.
+    #   image: azuekubeacr03.azurecr.io/dotnet/sdk-python3-virtualenv:9.0.201-noble-amd64
+    # A pull request needs to be approved before Frogbot scans it. Any GitHub user who is associated with the
+    # "frogbot" GitHub environment can approve the pull request to be scanned.
+    # environment: frogbot
+    steps:
+      - uses: jfrog/frogbot@v2
+        env:
+          # [Mandatory]
+          # JFrog platform URL
+          # Temporary JFrog SaaS instance, hosted by JFrog for new feature evaluation.
+          # Accessible from GitHub-hosted runners.
+          JF_URL: https://ansyscpp.jfrog.io/
+
+          # [Mandatory if JF_USER and JF_PASSWORD are not provided]
+          # JFrog access token with 'read' permissions on Xray service
+          # JF_ACCESS_TOKEN: ${{ secrets.JF_ACCESS_TOKEN }}
+
+          # [Mandatory if JF_ACCESS_TOKEN is not provided]
+          # JFrog username with 'read' permissions for Xray. Must be provided with JF_PASSWORD
+          # JF_USER: ${{ secrets.JF_USER }}
+
+          # [Mandatory if JF_ACCESS_TOKEN is not provided]
+          # JFrog password. Must be provided with JF_USER
+          # JF_PASSWORD: ${{ secrets.JF_PASSWORD }}
+
+          # [Mandatory]
+          # The GitHub token is automatically generated for the job
+          JF_GIT_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          
+        # [Mandatory if using OIDC authentication protocol instead of JF_ACCESS_TOKEN]
+        # Insert to oidc-provider-name the 'Provider Name' defined in the OIDC integration configured in the JPD
+        # OIDC identiy mappings are defined in JFrog Platform administration -> General Management -> Manage Integrations
+        with:
+          oidc-provider-name: "github-actions-oidc"
+          oidc-audience: GitHub ansys-internal CI/CD Pipelines 

.github/workflows/frogbot-scan-repository.yml

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+name: "Frogbot Scan Repository"
+on:
+  workflow_dispatch:
+  schedule:
+    # The repository will be scanned once a day at 00:00 GMT.
+    - cron: "0 0 * * *"
+permissions:
+  contents: write
+  pull-requests: write
+  security-events: write
+  # [Mandatory If using OIDC authentication protocol instead of JF_ACCESS_TOKEN]
+  id-token: write
+jobs:
+  scan-repository:
+    runs-on: ubuntu-latest-4-cores
+    # container: 
+    #   # Official .NET SDK image with python3-virtualenv package installed. One-time manual creation.
+    #   image: azuekubeacr03.azurecr.io/dotnet/sdk-python3-virtualenv:9.0.201-noble-amd64
+    strategy:
+      matrix:
+        # The repository scanning will be triggered periodically on the following branches.
+        branch: ["main"]
+    steps:
+      - uses: jfrog/frogbot@v2
+        env:
+          # [Mandatory]
+          # JFrog platform URL
+          # Accessible from GitHub-hosted runners.
+          JF_URL: https://ansyscpp.jfrog.io/
+
+          # [Mandatory if JF_USER and JF_PASSWORD are not provided]
+          # JFrog access token with 'read' permissions on Xray service
+          # JF_ACCESS_TOKEN: ${{ secrets.JF_ACCESS_TOKEN }}
+
+          # [Mandatory if JF_ACCESS_TOKEN is not provided]
+          # JFrog username with 'read' permissions for Xray. Must be provided with JF_PASSWORD
+          # JF_USER: ${{ secrets.JF_USER }}
+
+          # [Mandatory if JF_ACCESS_TOKEN is not provided]
+          # JFrog password. Must be provided with JF_USER
+          # JF_PASSWORD: ${{ secrets.JF_PASSWORD }}
+
+          # [Mandatory]
+          # The GitHub token is automatically generated for the job
+          JF_GIT_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+          # [Mandatory]
+          # The name of the branch on which Frogbot will perform the scan
+          JF_GIT_BASE_BRANCH: ${{ matrix.branch }}
+
+        # [Mandatory if using OIDC authentication protocol instead of JF_ACCESS_TOKEN]
+        # Insert to oidc-provider-name the 'Provider Name' defined in the OIDC integration configured in the JPD
+        with:
+          oidc-provider-name: "github-actions-oidc"
+          oidc-audience: GitHub ansys-internal CI/CD Pipelines