Create workflows for different scenarios where we'd want to run quick checks

Author: SarahFrench

.github/workflows/checks-merge-feature-branch.yml

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+name: 'Quick Checks: unprotected feature branches'
+
+on:
+  # We only run checks when pushing to a feature branch:
+  # - If there are changes outside the ignored, non-code paths below
+  push:
+    branches:
+      - '*'
+    branches-ignore:
+      - 'main'
+      - 'v[0-9]+.[0-9]+'
+    paths-ignore:
+      - 'CHANGELOG.md'
+      - '.changes/**'
+      - 'version/VERSION'
+      - 'docs/**'
+
+# This workflow runs for not-yet-reviewed external contributions and so it
+# intentionally has no write access and only limited read access to the
+# repository.
+permissions:
+  contents: read
+
+jobs:
+ quick-checks:
+  uses: ./.github/workflows/reusable/checks.yml

.github/workflows/checks-merge-protected-branch.yml

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+name: 'Quick Checks: protected branches & tags'
+
+on:
+  # We always run checks on:
+  # - PR merges to main
+  # - PR merges to release branches
+  push:
+    branches:
+      - 'main'
+      - 'v[0-9]+.[0-9]+'
+    tags:
+      - 'v[0-9]+.[0-9]+.[0-9]+*'
+
+# This workflow runs for not-yet-reviewed external contributions and so it
+# intentionally has no write access and only limited read access to the
+# repository.
+permissions:
+  contents: read
+
+jobs:
+ quick-checks:
+  uses: ./.github/workflows/reusable/checks.yml

.github/workflows/checks-pr-events.yml

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+name: 'Quick Checks: pull requests'
+
+on:
+  # We only run checks on pull request events:
+  # - If there are changes outside the ignored, non-code paths below
+  pull_request:
+    types:
+      - opened
+      - ready_for_review
+      - reopened
+      - synchronize
+    paths-ignore:
+      - 'CHANGELOG.md'
+      - '.changes/**'
+      - 'version/VERSION'
+      - 'docs/**'
+
+# This workflow runs for not-yet-reviewed external contributions and so it
+# intentionally has no write access and only limited read access to the
+# repository.
+permissions:
+  contents: read
+
+jobs:
+ quick-checks:
+  uses: ./.github/workflows/reusable/checks.yml