🤖 [main] Update image version in Dockerfiles (#294)

This is an automated PR, which updates the Dockerfile versions to their
latest versions.

Co-authored-by: JasonPowr <JasonPowr@users.noreply.github.com>

.tekton/rekor-unit-test.yaml

@@ -9,7 +9,7 @@ spec:
     - name: source
   steps:
     - name: run-tests
-      image: registry.access.redhat.com/ubi9/go-toolset@sha256:503180314bc0d2812fa941c98f56352db498deed76955f08599e04e283db23ff
+      image: registry.access.redhat.com/ubi9/go-toolset@sha256:6cfa39d66952aec3da01161460a2616802bcb5e814d8d30b5774169be0d75bde
       workingDir: $(workspaces.source.path)/source
       script: |
         #!/usr/bin/env sh

Dockerfile.rekor-server.rh

@@ -35,13 +35,13 @@ RUN CGO_ENABLED=0 go build -gcflags "all=-N -l" -ldflags "${SERVER_LDFLAGS}" -o
 RUN go test -c -ldflags "${SERVER_LDFLAGS}" -cover -covermode=count -coverpkg=./... -o rekor-server_test -mod=readonly ./cmd/rekor-server
 
 # debug compile options & debugger
-FROM registry.access.redhat.com/ubi9/go-toolset@sha256:503180314bc0d2812fa941c98f56352db498deed76955f08599e04e283db23ff as debug
+FROM registry.access.redhat.com/ubi9/go-toolset@sha256:6cfa39d66952aec3da01161460a2616802bcb5e814d8d30b5774169be0d75bde as debug
 RUN go install github.com/go-delve/delve/cmd/dlv@v1.8.0
 
 # overwrite server and include debugger
 COPY --from=build-env /opt/app-root/src/rekor-server_debug /usr/local/bin/rekor-server
 
-FROM registry.access.redhat.com/ubi9/go-toolset@sha256:503180314bc0d2812fa941c98f56352db498deed76955f08599e04e283db23ff as test
+FROM registry.access.redhat.com/ubi9/go-toolset@sha256:6cfa39d66952aec3da01161460a2616802bcb5e814d8d30b5774169be0d75bde as test
 
 USER root