chore(ci): use official RH oc setup action

.github/workflows/pr-open.yml

@@ -9,7 +9,7 @@ concurrency:
 
 jobs:
   deploys:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     timeout-minutes: 10
     outputs:
       backend: ${{ steps.trigger.outputs.backend }}
@@ -51,7 +51,7 @@ jobs:
 
   results:
     name: Results
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     needs: [deploys]
     steps:
       - run: |

README.md

@@ -103,7 +103,7 @@ Deploy a single template.  Multiple GitHub secrets are used.
 ```yaml
 deploys:
   name: Deploys
-  runs-on: ubuntu-latest
+  runs-on: ubuntu-24.04
   steps:
     - name: Deploys
       uses: bcgov-nr/action-deployer-openshift.yml@main
@@ -126,7 +126,7 @@ Deploy multiple templates in parallel.  Runs on pull requests (PRs).
 ```yaml
 deploys:
 name: Deploys
-runs-on: ubuntu-latest
+runs-on: ubuntu-24.04
   strategy:
     matrix:
     name: [backend, database, frontend, init]
@@ -170,7 +170,7 @@ Deploy and run a command (post hook).  Matrix values reference `post_rollout`, `
 ```yaml
 deploys:
 name: Deploys
-runs-on: ubuntu-latest
+runs-on: ubuntu-24.04
   strategy:
     matrix:
     name: [database, frontend]
@@ -205,7 +205,7 @@ Deploy a template and set the after deployment check to hit the **/health** endp
 ```yaml
 deploys:
   name: Deploys
-  runs-on: ubuntu-latest
+  runs-on: ubuntu-24.04
   steps:
     - name: Deploys
       uses: bcgov-nr/action-deployer-openshift.yml@main

action.yml

@@ -105,16 +105,12 @@ runs:
         diff_branch: ${{ inputs.diff_branch }}
 
     # Override OpenShift version, if specified
-    - name: Override OpenShift version
-      if: ${{ inputs.oc_version }}
-      env:
-        OC: https://mirror.openshift.com/pub/openshift-v4/clients/ocp/stable-${{ inputs.oc_version }}/openshift-client-linux.tar.gz
-      shell: bash
-      working-directory: /usr/local/bin/
-      run: |
-        # Override default OpenShift version (retry, resume)
-        (wget ${{ env.OC }} -qcO - | tar -xzvf - oc)|| !!
-        oc version
+    - name: Install CLI tools from OpenShift Mirror
+      uses: redhat-actions/openshift-tools-installer@v1
+      with:        
+        kam: "latest"
+        oc: ${{ inputs.oc_version || '4' }}
+        odo: "3.9"
 
     # Process variables and inputs
     # Remote/override repo is required if one has been specified (input)