Release workflow: Use Python package version instead of manual input

CMK-18197

.github/workflows/release.yaml

@@ -3,15 +3,7 @@
 
 ---
   name: "Release"
-  on:
-    workflow_dispatch:
-      inputs:
-        tag:
-          description: >
-            Tag set by this GitHub workflow.
-            Should follow SemVer and is not allowed to exist already.
-          required: true
-          type: string
+  on: workflow_dispatch
 
   jobs:
     tests:
@@ -22,6 +14,7 @@
       environment: release
       permissions:
         id-token: write
+        contents: write
       needs: [tests]
       steps:
         - uses: actions/checkout@v4
@@ -35,26 +28,35 @@
         - run: poetry build
 
         - run: tar --create --gzip --verbose --file dist.tar.gz dist
-
-        - name: "Push release tag"
-          # This is publicly visible and needs to be manually fixed if any
-          # consecutive step fails.
+
+        - name: "Set release according to package version"
+          id: compute-tag
           run: |
-            git tag ${{ inputs.tag }}  # Fails, if tag exists.
-            git push origin ${{ inputs.tag }}
+            version="$(poetry version | cut --delimiter " " --fields 2)"
+            echo "TAG=v${version}" >> "${GITHUB_OUTPUT}"
   
-        - uses: ncipollo/[email protected]
-          with:
-            allowUpdates: false
-            artifacts: "dist.tar.gz"
-            replacesArtifacts: true
-            removeArtifacts: true
-            prerelease: true
-            draft: true
-            body: ""
-            artifactErrorsFailBuild: true
-            updateOnlyUnreleased: true
-            makeLatest: false
-            tag: ${{ inputs.tag }}
-
-        - uses: pypa/gh-action-pypi-publish@release/v1
+        - name: Setup tmate session
+          uses: mxschmitt/action-tmate@v3
+
+        # - name: "Push release tag"
+        #   # This is publicly visible and needs to be manually fixed if any
+        #   # consecutive step fails.
+        #   run: |
+        #     git tag ${{ steps.compute-tag.outputs.TAG }} # Fails, if tag exists.
+        #     git push origin ${{ steps.compute-tag.outputs.TAG }}
+
+        # - uses: ncipollo/[email protected]
+        #   with:
+        #     allowUpdates: false
+        #     artifacts: "dist.tar.gz"
+        #     replacesArtifacts: true
+        #     removeArtifacts: true
+        #     prerelease: true
+        #     draft: true
+        #     body: ""
+        #     artifactErrorsFailBuild: true
+        #     updateOnlyUnreleased: true
+        #     makeLatest: false
+        #     tag: ${{ steps.compute-tag.outputs.TAG }}
+
+        # - uses: pypa/gh-action-pypi-publish@release/v1