ci: Add support to test Python 3.14.0rc3.

Signed-off-by: Paulo Vital <paulo.vital@ibm.com>

Author: pvital

.tekton/github-pr-pipeline.yaml.part

@@ -28,7 +28,7 @@ spec:
     default: public.ecr.aws/docker/library/python:3.13-bookworm
   - name: py-314-imageDigest
     type: string
-    default: public.ecr.aws/docker/library/python:3.14.0rc2
+    default: public.ecr.aws/docker/library/python:3.14.0rc3
   workspaces:
     - name: python-tracer-ci-pipeline-pvc
   tasks:

.tekton/pipeline.yaml

@@ -26,7 +26,7 @@ spec:
     default: public.ecr.aws/docker/library/python:3.13-bookworm
   - name: py-314-imageDigest
     type: string
-    default: public.ecr.aws/docker/library/python:3.14.0rc2
+    default: public.ecr.aws/docker/library/python:3.14.0rc3
   workspaces:
     - name: python-tracer-ci-pipeline-pvc
   tasks:
@@ -110,7 +110,7 @@ spec:
         - clone
       params:
         - name: py-version
-          value: 3.14.0rc2
+          value: 3.14.0rc3
       taskRef:
         name: python-tracer-unittest-python-next-task
       workspaces:

.tekton/python-tracer-prepuller.yaml

@@ -59,7 +59,7 @@ spec:
           image: public.ecr.aws/docker/library/python:3.13-bookworm
           command: ["sh", "-c", "'true'"]
         - name: prepuller-314
-          image: public.ecr.aws/docker/library/python:3.14.0rc2
+          image: public.ecr.aws/docker/library/python:3.14.0rc3
           command: ["sh", "-c", "'true'"]
 
       # Use the pause container to ensure the Pod goes into a `Running` phase

Dockerfile-py3140

@@ -1,4 +1,4 @@
-FROM public.ecr.aws/docker/library/python:3.14.0b2
+FROM public.ecr.aws/docker/library/python:3.14.0rc3
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \