Fetch tags

Thanks to actions/checkout#579 (comment)

.github/workflows/main.yml

@@ -73,6 +73,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Fetch all tags
+        # checkout only gets the latest commit, so it has no tag info
+        run: git fetch --depth=1 --tags
+
       - uses: actions/setup-go@v5
         with:
           go-version: "1.22.x"

codegen/gen_docs.sh

@@ -3,4 +3,4 @@
 set -e
 cd "$(dirname "$0")/.."
 
-go run ./tools/docgen --version $(git describe --tags --abbrev=0) --output ./docs/plugins
+go run ./tools/docgen --version $(git tag -l --sort=-creatordate | head -n1) --output ./docs/plugins