chore(deps): update registry.access.redhat.com/ubi8/openjdk-21 docker tag to v1.21-2.1752065781

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

Author: red-hat-konflux[bot]

stacks/java-quarkus/1.5.0/devfile.yaml

@@ -21,7 +21,7 @@ starterProjects:
 components:
   - name: tools
     container:
-      image: registry.access.redhat.com/ubi8/openjdk-21:1.20-3.1721207868
+      image: registry.access.redhat.com/ubi8/openjdk-21:1.21-2.1752065781
       args: ['tail', '-f', '/dev/null']
       memoryLimit: 1024Mi ## default app nowhere needs this but leaving room for expansion.
       mountSources: true