build(deps): Bump ubi8/ubi

Bumps the ubuntu group with 1 update in the /CI/Dockerfiles directory: ubi8/ubi.


Updates `ubi8/ubi` from `ecbeb81` to `5993454`

---
updated-dependencies:
- dependency-name: ubi8/ubi
  dependency-type: direct:production
  dependency-group: ubuntu
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

CI/Dockerfiles/Dockerfile.RHUbi8

@@ -20,7 +20,7 @@
 # Dockerfile for Continuous Integration
 # More info at https://github.com/openwall/john-packages
 
-FROM registry.access.redhat.com/ubi8/ubi:latest@sha256:ecbeb81a4737dfca66ad18eaafb4892d8602b1ae938e0ac3251bb4335aa1a547
+FROM registry.access.redhat.com/ubi8/ubi:latest@sha256:5993454fa14164449539110099944e04cc76912cfc2220f1e8762ffcb19b5289
 LABEL org.opencontainers.image.authors="Claudio André <[email protected]>"
 LABEL description="Docker images for John the Ripper CI (1.0.Red Hat 8)"
 LABEL org.opencontainers.image.source="https://github.com/openwall/john-packages"