chore(ci): fix gosec action source for gitea runners

.gitea/workflows/pr-validation.yml

@@ -53,12 +53,6 @@ jobs:
           git diff --exit-code go.mod go.sum
           go mod verify
 
-      - name: Install security tools
-        run: |
-          set -euo pipefail
-          go install github.com/securego/gosec/v2/cmd/gosec@v2.22.3
-          go install golang.org/x/vuln/cmd/govulncheck@v1.1.4
-
       - name: Install AWS CLI v2
         uses: ankurk91/install-aws-cli-action@v1
 
@@ -159,7 +153,7 @@ jobs:
           fi
 
       - name: Run Gosec Security Scanner
-        uses: secureCodeBox/gosec-action@v1
+        uses: securego/gosec@v2.22.3
         with:
           args: './...'