Explicitly enable postgresql:15 module (#545)

Fixes:
```
Argument 'postgresql' matches 2 streams ('15', '16') of module 'postgresql', but none of the streams are enabled or default
Unable to resolve argument postgresql
```

see
https://github.com/packit/deployment/actions/workflows/base-image-rebuild.yml

.github/workflows/base-image-rebuild.yml

@@ -8,7 +8,6 @@ on:
     branches:
       - main
     paths:
-      - containers/Containerfile.fedora
       - containers/Containerfile.c9s
 
 jobs:
@@ -21,8 +20,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - containerfile: containers/Containerfile.fedora
-            tags: "fedora"
           - containerfile: containers/Containerfile.c9s
             tags: "c9s latest"
 

.pre-commit-config.yaml

@@ -1,5 +1,5 @@
 # HOWTO: https://pre-commit.com/#usage
-# pip3 install pre-commit
+# dnf install pre-commit
 # pre-commit install
 
 repos:
@@ -20,26 +20,20 @@ repos:
         args:
           - --allow-missing-credentials
   - repo: https://github.com/ansible/ansible-lint.git
-    rev: v6.20.3
+    rev: v6.22.1
     hooks:
       - id: ansible-lint
         files: \.(yaml|yml)$
   - repo: https://github.com/psf/black
-    rev: 23.9.1
+    rev: 23.12.0
     hooks:
       - id: black
   - repo: https://github.com/shellcheck-py/shellcheck-py
     rev: v0.9.0.6
     hooks:
       - id: shellcheck
-  - repo: https://github.com/gitleaks/gitleaks
-    rev: v8.18.0
-    hooks:
-      - id: gitleaks
-        # The hook runs 'gitleaks protect --staged' which parses output of
-        # 'git diff --staged', i.e. always passes in pre-push/manual stage.
-        stages: [commit]
 
 ci:
   # The project is too huge for pre-commit.ci
   skip: [ansible-lint]
+  autoupdate_schedule: monthly

containers/Containerfile.c9s

@@ -6,9 +6,9 @@ FROM quay.io/centos/centos:stream9
 ENV ANSIBLE_PYTHON_INTERPRETER=/usr/bin/python3 \
     ANSIBLE_STDOUT_CALLBACK=debug
 
-RUN dnf install -y epel-release 'dnf-command(config-manager)' && \
-    dnf config-manager --set-enabled crb && \
-    dnf module enable postgresql -y && \
-    dnf update -y && \
-    dnf install -y ansible python3-pip && \
+RUN dnf -y install epel-release && \
+    crb enable && \
+    dnf -y module enable postgresql:15 && \
+    dnf -y upgrade && \
+    dnf -y install ansible python3-pip && \
     dnf clean all