Update some action versions in the GitHub Actions main workflow

Author: mahozad

.github/workflows/main.yml

@@ -5,7 +5,7 @@ on:
     branches:
       - main
   schedule:
-    # Run at minute 30 every 3 hours, starting from the hour 0 (12 midnight)
+    # Runs at minute 30 every 3 hours, starting from the hour 0 (12 midnight)
     - cron:  '30 0/3 * * *'
 
 jobs:
@@ -20,7 +20,7 @@ jobs:
       - name: Use a specific Kotlin version
         uses: fwilhe2/setup-kotlin@main
         with:
-          version: 2.1.0
+          version: 2.2.0
 
       - name: Check if there is a new release
         id: check-for-updates
@@ -36,7 +36,7 @@ jobs:
       # It could be used as the release body but had some minor formatting issues.
       # For example, it contained unnecessary new lines in the body.
       - name: Convert from HTML to markdown
-        uses: docker://pandoc/core:2.18.0
+        uses: docker://pandoc/core:3.7.0.2
         if: ${{ steps.check-for-updates.outputs.result == 'stale' }}
         with:
           # These are appended to "pandoc" command exactly like in terminal
@@ -58,7 +58,7 @@ jobs:
 
       # Also see https://github.com/EndBug/add-and-commit
       - name: Commit main changes
-        uses: stefanzweifel/git-auto-commit-action@v4
+        uses: stefanzweifel/git-auto-commit-action@v6
         if: ${{ steps.check-for-updates.outputs.result == 'stale' }}
         with:
           commit_message: Update last RSS update time