fixup! [Core] Use OpenAssetIO-MediaCreation

.github/build_openassetio_mediacreation/action.yml

@@ -13,14 +13,15 @@ runs:
     - name: Checkout OpenAssetIO-MediaCreation
       uses: actions/checkout@v3
       with:
-        repository: OpenAssetIO-MediaCreation/OpenAssetIO-MediaCreation
+        repository: OpenAssetIO/OpenAssetIO-MediaCreation
         path: openassetio-mediacreation-checkout
 
     - name: Build OpenAssetIO-MediaCreation
       shell: bash
       run: |
-        cd openassetio-medeacreation-checkout
+        cd openassetio-mediacreation-checkout
         mkdir build
+        python -m pip install openassetio-traitgen
         cmake -G Ninja -S . -B build
         cmake --build build
         cmake --install build

.github/workflows/code-quality.yml

@@ -100,7 +100,7 @@ jobs:
 
       - name: Configure CMake build
         run: >
-          cmake -DCMAKE_PREFIX_PATH="./openassetio-build:./openassetio-mediacreation-build"
+          cmake -DCMAKE_PREFIX_PATH="./openassetio-build;./openassetio-mediacreation-build"
           -S . -B build -G Ninja
           --install-prefix ${{ github.workspace }}/dist
           --preset lint

.github/workflows/test.yml

@@ -54,12 +54,13 @@ jobs:
 
       - name: Build and install Resolver
         run: |
-          cmake -S . -DCMAKE_PREFIX_PATH="./openassetio-build:./openassetio-mediacreation-build" -B build
+          cmake -S . -DCMAKE_PREFIX_PATH="./openassetio-build;./openassetio-mediacreation-build" -B build
           cmake --build build
           cmake --install build
 
       - run: |
           python -m pip install -r tests/requirements.txt
+          python -n pip install importlib-metadata
 
         # PYTHONPATH here is extended with `/usr/local/lib/python`
         # because the USD install on this docker container is odd, and