Update README.md (#41)

Bump actions/checkout from 3 to 4

Bump stefanzweifel/git-auto-commit-action from 4 to 5

README.md

@@ -40,7 +40,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: ${{ github.event.release.target_commitish }}
 
@@ -51,7 +51,7 @@ jobs:
           release-notes: ${{ github.event.release.body }}
 
       - name: Commit updated CHANGELOG
-        uses: stefanzweifel/git-auto-commit-action@v4
+        uses: stefanzweifel/git-auto-commit-action@v5
         with:
           branch: ${{ github.event.release.target_commitish }}
           commit_message: Update CHANGELOG
@@ -104,7 +104,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # Fetch entire history of repository to ensure relase date can be
           # extracted from commit of the given tag.
@@ -137,7 +137,7 @@ jobs:
           # compare-url-target-revision: ${{ github.event.release.target_commitish }}
 
       - name: Commit updated CHANGELOG
-        uses: stefanzweifel/git-auto-commit-action@v4
+        uses: stefanzweifel/git-auto-commit-action@v5
         with:
           # Push updated CHANGELOG to release target branch.
           branch: ${{ github.event.release.target_commitish }}