CI: Move repo to a (newer) Makefile

#### Problem

Although the config repo is already using a Makefile, it is still
using its own github workflows and scripts.

#### Summary of changes

Unify everything by using the Makefile and scripts from the ALT repo.
Similar to others, this removes the `bpf-entrypoint` and `test-sbf`
features, renames the program-mb.so, use the interface crate in benches,
add words to the dictionary as needed.

Author: joncinque

.github/actions/setup/action.yml

@@ -0,0 +1,22 @@
+name: Dependabot auto-merge
+on: pull_request
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  dependabot:
+    runs-on: ubuntu-latest
+    if: github.event.pull_request.user.login == 'dependabot[bot]' && github.repository_owner == 'solana-program'
+    steps:
+      - name: Enable auto-merge
+        run: gh pr merge --auto --squash "$PR_URL"
+        env:
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Approve
+        run: gh pr review --approve "$PR_URL"
+        env:
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}