[release-5.36] Update the CI image, to match Skopeo's updated test code

.cirrus.yml

@@ -30,7 +30,7 @@
     SKOPEO_PR:
 
     # Google-cloud VM Images
-    IMAGE_SUFFIX: "c20250422t130822z-f42f41d13"
+    IMAGE_SUFFIX: "c20250721t181111z-f42f41d13"
     FEDORA_CACHE_IMAGE_NAME: "fedora-${IMAGE_SUFFIX}"
 
     # Container FQIN's (include bleeding-edge development-level container deps.)
@@ -71,7 +71,7 @@
     script: make cross
 
 
 test_task:
     alias: test
     depends_on:
         - validate
@@ -92,7 +92,7 @@
 ##### repository's `.cirrus.yml`.  Changes made here should be fully merged
 ##### prior to being manually duplicated and maintained in containers/skopeo.
 #####
 test_skopeo_task:
     alias: test_skopeo
     only_if: *not_docs
     depends_on:
@@ -145,7 +145,7 @@
 # Status aggregator for all tests.  This task simply ensures a defined
 # set of tasks all passed, and allows confirming that based on the status
 # of this task.
 success_task:
     name: "Total Success"
     alias: success
     # N/B: ALL tasks must be listed here, minus their '_task' suffix.