Pin quay.io/factory2/indy-generic-proxy-service Docker tag to 1b74f69

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

deploy/tasks/buildah-oci-ta.yaml

@@ -881,7 +881,7 @@ spec:
           memory: 256Mi
   sidecars:
     - name: indy-generic-proxy
-      image: quay.io/factory2/indy-generic-proxy-service:latest-stage-mpplus
+      image: quay.io/factory2/indy-generic-proxy-service:latest-stage-mpplus@sha256:1b74f69780ea99fff728a0682d7843c8f22233076f0fd8ac4b1147421d006dac
       volumeMounts:
         - name: indy-generic-proxy-secrets
           readOnly: true