CI: use dunamai for version

.forgejo/workflows/build.yaml

@@ -30,32 +30,29 @@ jobs:
       - name: Get version
         uses: mtkennerly/dunamai-action@v1
         with:
-          env-var: VERSION
           args: --style semver
+          env-var: VERSION
 
       - name: Version
         run: echo $VERSION
 
-      - name: Get version with git describe
-        id: version
-        run: |
-          echo "version=$(git describe)" >> $GITHUB_OUTPUT
-          echo "$VERSION"
+      - name: Get distance from tag
+        uses: mtkennerly/dunamai-action@v1
+        with:
+          args: --format "{distance}"
+          env-var: DISTANCE
 
-      - name: Check if the container should be built
+      - name: Distance
+        run: echo $DISTANCE
+
+      - name: Check if the container should be built (distance from git tag is 0, or force build)
         id: builder
         env:
-          RUN: ${{ toJSON(inputs.build || !contains(steps.version.outputs.version, '-')) }}
+          RUN: ${{ toJSON(inputs.build || env.DISTANCE == "0" }}
         run: |
           echo "run=$RUN" >> $GITHUB_OUTPUT
           echo "Run build: $RUN"
 
-      - name: Set the version in pyproject.toml (workaround for uv not supporting dynamic version)
-        if: fromJSON(steps.builder.outputs.run)
-        env:
-          VERSION: ${{ steps.version.outputs.version }}
-        run: sed "s/0.0.0/$VERSION/" -i pyproject.toml
-
       - name: Workaround for bug of podman-login
         if: fromJSON(steps.builder.outputs.run)
         run: |