fix: improve version detection in push target to use latest existing tag

  Fix duplicate "v" prefix issue by using git describe --abbrev=0 to get the latest existing tag instead of
  exact match. This prevents creating tags like "vv0.2.0" and allows the push target to work with existing
  tags rather than requiring exact HEAD matches.

Signed-off-by: Nagy Károly Gábriel <[email protected]>

Author: karasz

internal/build/gen_mk.sh

@@ -323,9 +323,9 @@ push-$name: | release-$name ; \$(info \$(M) pushing release artifacts for $name
 		echo "Run 'gh auth login' first" >&2; \\
 		exit 1; \\
 	fi
-	\$Q VERSION="\$\$(git describe --tags --exact-match 2>/dev/null || git rev-parse --short HEAD)"; \\
-		RELEASE_TITLE="$name v\$\$VERSION"; \\
-		RELEASE_TAG="v\$\$VERSION"; \\
+	\$Q VERSION="\$\$(git describe --tags --abbrev=0 2>/dev/null || echo "v0.0.0-\$\$(git rev-parse --short HEAD)")"; \\
+		case "\$\$VERSION" in v*) RELEASE_TAG="\$\$VERSION"; RELEASE_VERSION="\$\${VERSION#v}" ;; *) RELEASE_TAG="v\$\$VERSION"; RELEASE_VERSION="\$\$VERSION" ;; esac; \\
+		RELEASE_TITLE="$name v\$\$RELEASE_VERSION"; \\
 		echo "Creating release \$\$RELEASE_TAG..."; \\
 		if gh release view "\$\$RELEASE_TAG" >/dev/null 2>&1; then \\
 			echo "Release \$\$RELEASE_TAG already exists, uploading additional artifacts..."; \\