workflows: Prepare to change upcoming 4.1 release

We still need to release 4.0 as a stable version.
So, we still needed to use latest tag as a 4.0.x versions.

Signed-off-by: Hiroshi Hatake <[email protected]>

Author: cosmo0920

.github/workflows/staging-release.yaml

@@ -502,7 +502,9 @@ jobs:
           TAG: ${{ steps.get-tag.outputs.tag }}
 
   staging-release-images-latest-tags:
-    # Only update latest tags for 4.0 releases
+    # NOTE: Before releasing 4.1, we need to change '4.' to '4.1'
+    # Meanwhile, we need to release 4.0 series as stable releases.
+    # Only update latest tags for 4. releases
     if: startsWith(github.event.inputs.version, '4.')
     name: Release latest Linux container images
     runs-on: ubuntu-latest
@@ -829,7 +831,7 @@ jobs:
           target_commitish: '3.2'
           make_latest: false
 
-      - name: Release 4.0 and latest
+      - name: Release 4.0 - not latest
         uses: softprops/action-gh-release@v2
         if: startsWith(inputs.version, '4.0')
         with:
@@ -840,6 +842,17 @@ jobs:
           tag_name: v${{ inputs.version }}
           make_latest: true
 
+      - name: Release 4.1 and latest
+        uses: softprops/action-gh-release@v2
+        if: startsWith(inputs.version, '4.1')
+        with:
+          body: "https://fluentbit.io/announcements/v${{ inputs.version }}/"
+          draft: false
+          generate_release_notes: true
+          name: "Fluent Bit ${{ inputs.version }}"
+          tag_name: v${{ inputs.version }}
+          make_latest: true
+
   staging-release-windows-checksums:
     name: Get Windows checksums for new release
     runs-on: ubuntu-22.04
@@ -948,13 +961,20 @@ jobs:
           token: ${{ secrets.GH_PA_TOKEN }}
           ref: 3.2
 
-      - name: Release 4.0 and latest
+      - name: Release 4.0 - not latest
         if: startsWith(inputs.version, '4.0')
         uses: actions/checkout@v4
         with:
           repository: fluent/fluent-bit-docs
           token: ${{ secrets.GH_PA_TOKEN }}
 
+      - name: Release 4.1 and latest
+        if: startsWith(inputs.version, '4.1')
+        uses: actions/checkout@v4
+        with:
+          repository: fluent/fluent-bit-docs
+          token: ${{ secrets.GH_PA_TOKEN }}
+
       - name: Ensure we have the script we need
         run: |
           if [[ ! -f update-release-version-docs.sh ]] ; then