Fix the kpt releaae job (#4385)

Signed-off-by: liamfallon <liam.fallon@est.tech>

Author: liamfallon

.github/workflows/release.yml

@@ -66,6 +66,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: Generate SLSA subjects for provenance
         id: hash
+        working-directory: go/src/github.com/kptdev/kpt
         run: |
           set -euo pipefail