CI: the nfpm sed pointed at a binary name that no longer exists

nfpm.yaml ships ./dist/labctl; the workflow's sed rewrote
`src: ./dist/lab` -- a pattern that matches nothing -- so nfpm looked for
./dist/labctl, which the bun bundle steps never produce. This job had
never run before (every earlier run died at pnpm setup), so the drift
was invisible. Rewrite the pattern the file actually contains.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01V6HNx6cyr4J4CiMGCy1wkF

.gitea/workflows/ci.yml

@@ -146,13 +146,13 @@ jobs:
 
       - name: Package x86_64 RPM + DEB
         run: |
-          sed -e 's|^arch:.*|arch: amd64|' -e 's|src: ./dist/lab$|src: ./dist/lab-x86_64|' nfpm.yaml > /tmp/nfpm-x86_64.yaml
+          sed -e 's|^arch:.*|arch: amd64|' -e 's|src: ./dist/labctl$|src: ./dist/lab-x86_64|' nfpm.yaml > /tmp/nfpm-x86_64.yaml
           nfpm pkg --config /tmp/nfpm-x86_64.yaml --packager rpm --target dist/
           nfpm pkg --config /tmp/nfpm-x86_64.yaml --packager deb --target dist/
 
       - name: Package arm64 RPM + DEB
         run: |
-          sed -e 's|^arch:.*|arch: arm64|' -e 's|src: ./dist/lab$|src: ./dist/lab-arm64|' nfpm.yaml > /tmp/nfpm-arm64.yaml
+          sed -e 's|^arch:.*|arch: arm64|' -e 's|src: ./dist/labctl$|src: ./dist/lab-arm64|' nfpm.yaml > /tmp/nfpm-arm64.yaml
           nfpm pkg --config /tmp/nfpm-arm64.yaml --packager rpm --target dist/
           nfpm pkg --config /tmp/nfpm-arm64.yaml --packager deb --target dist/