fix(ci): restore required gpg_key/gpg_pass secrets for starter.yml@v5

The v5 bump dropped gpg_key/gpg_pass, but v5's starter.yml declares both as
required secrets — so the reusable-workflow call failed validation at startup
(startup_failure, run 27373820011). Add them back (the other dropped inputs/
secrets — entra, command_*, command_token_url/hostname/base_api_path — are all
required:false in v5, so they stay omitted).

Author: spbsoluble

.github/workflows/keyfactor-bootstrap-workflow.yml

@@ -14,4 +14,6 @@ jobs:
     uses: keyfactor/actions/.github/workflows/starter.yml@v5
     secrets:
       token: ${{ secrets.V2BUILDTOKEN }}
+      gpg_key: ${{ secrets.KF_GPG_PRIVATE_KEY }}
+      gpg_pass: ${{ secrets.KF_GPG_PASSPHRASE }}
       scan_token: ${{ secrets.SAST_TOKEN }}