chore(deps): update registry.access.redhat.com/ubi8/go-toolset docker…

… tag to v1.21.13 (#223)

Signed-off-by: red-hat-konflux <126015336+red-hat-konflux[bot]@users.noreply.github.com>
Co-authored-by: red-hat-konflux[bot] <126015336+red-hat-konflux[bot]@users.noreply.github.com>

.tekton/entitlements-api-go-pull-request.yaml

@@ -217,7 +217,7 @@ spec:
           # set the working directory to value from previous step
           workingDir: /var/workdir/source
           # Use image that suites your use case
-          image: registry.access.redhat.com/ubi8/go-toolset:1.20.10
+          image: registry.access.redhat.com/ubi8/go-toolset:1.21.13
           securityContext:
           # If the task step needs write access to the volume, set the runAsUser to 0 (root).
             runAsUser: 0