ci: drop pinned digests from workflows

Author: tboerger

.github/workflows/automerge.yml

@@ -20,7 +20,7 @@ jobs:
     steps:
       - name: Generate token
         id: token
-        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2
+        uses: actions/create-github-app-token@v2
         with:
           app-id: ${{ secrets.TOKEN_EXCHANGE_APP }}
           private-key: ${{ secrets.TOKEN_EXCHANGE_KEY }}
@@ -29,7 +29,7 @@ jobs:
           permission-issues: write
 
       - name: Fetch metadata
-        uses: dependabot/fetch-metadata@21025c705c08248db411dc16f3619e6b5f9ea21a # v2
+        uses: dependabot/fetch-metadata@v2
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
 

.github/workflows/flake.yml

@@ -17,19 +17,19 @@ jobs:
     steps:
       - name: Generate token
         id: token
-        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2
+        uses: actions/create-github-app-token@v2
         with:
           app-id: ${{ secrets.TOKEN_EXCHANGE_APP }}
           private-key: ${{ secrets.TOKEN_EXCHANGE_KEY }}
           permission-contents: write
 
       - name: Checkout source
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
+        uses: actions/checkout@v6
         with:
           token: ${{ steps.token.outputs.token }}
 
       - name: Install nix
-        uses: cachix/install-nix-action@4e002c8ec80594ecd40e759629461e26c8abed15 # v31
+        uses: cachix/install-nix-action@v31
 
       - name: Update flake
         run: nix flake update
@@ -38,7 +38,7 @@ jobs:
         run: git pull --autostash --rebase
 
       - name: Commit changes
-        uses: EndBug/add-and-commit@a94899bca583c204427a224a7af87c02f9b325d5 # v9
+        uses: EndBug/add-and-commit@v9
         with:
           author_name: GitHub Actions
           author_email: github@webhippie.de

.github/workflows/general.yml

@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout source
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
+        uses: actions/checkout@v6
 
       - name: Setup ruby
         uses: ruby/setup-ruby@v1