Allow dev image to build on fork (#14898)

* Allow dev image to build on fork

Fix uppercase repo owner error in CI
example
```
Run docker pull ghcr.io/TheRealHaoLiu/awx_devel:devel
  docker pull ghcr.io/TheRealHaoLiu/awx_devel:devel
  shell: /usr/bin/bash --noprofile --norc -e -o pipefail {0}
  env:
    LC_ALL: C.UTF-8
    CI_GITHUB_TOKEN: ***
    DEV_DOCKER_OWNER: TheRealHaoLiu
    COMPOSE_TAG: devel
    py_version: 3
invalid reference format: repository name must be lowercase
```

---------

Co-authored-by: Rick Elrod <rick@elrod.me>

.github/actions/awx_devel_image/action.yml

@@ -11,6 +11,12 @@ runs:
       shell: bash
       run: echo py_version=`make PYTHON_VERSION` >> $GITHUB_ENV
 
+    - name: Set lower case owner name
+      shell: bash
+      run: echo "OWNER_LC=${OWNER,,}" >> $GITHUB_ENV
+      env:
+        OWNER: '${{ github.repository_owner }}'
+
     - name: Log in to registry
       shell: bash
       run: |
@@ -18,11 +24,11 @@ runs:
 
     - name: Pre-pull latest devel image to warm cache
       shell: bash
-      run: docker pull ghcr.io/${{ github.repository_owner }}/awx_devel:${{ github.base_ref }}
+      run: docker pull ghcr.io/${OWNER_LC}/awx_devel:${{ github.base_ref }}
 
     - name: Build image for current source checkout
       shell: bash
       run: |
-        DEV_DOCKER_TAG_BASE=ghcr.io/${{ github.repository_owner }} \
+        DEV_DOCKER_TAG_BASE=ghcr.io/${OWNER_LC} \
         COMPOSE_TAG=${{ github.base_ref }} \
         make docker-compose-build

.github/actions/run_awx_devel/action.yml

@@ -35,7 +35,7 @@ runs:
     - name: Start AWX
       shell: bash
       run: |
-        DEV_DOCKER_TAG_BASE=ghcr.io/${{ github.repository_owner }} \
+        DEV_DOCKER_OWNER=${{ github.repository_owner }} \
         COMPOSE_TAG=${{ github.base_ref }} \
         COMPOSE_UP_OPTS="-d" \
         make docker-compose