Check out PyAutoFit main instead of main_build in CI (#338)

PyAutoFit's main_build branch has been retired — origin/main now tracks
the same tip, so the workflow no longer needs a special-case ref or the
skip block that kept PyAutoFit on main_build during main-branch CI runs.

Co-authored-by: Jammy2211 <JNightingale2211@gmail.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: 3 people

.github/workflows/main.yml

@@ -18,7 +18,6 @@ jobs:
       uses: actions/checkout@v2
       with:
         repository: rhayes777/PyAutoFit
-        ref: main_build
         path: PyAutoFit
     - name: Checkout PyAutoArray
       uses: actions/checkout@v2
@@ -53,11 +52,6 @@ jobs:
         export BRANCH="${{ steps.extract_branch.outputs.branch }}"
         for PACKAGE in ${PACKAGES[@]}; do
           pushd $PACKAGE
-          if [[ "$PACKAGE" == "PyAutoFit" && "$BRANCH" == "main" ]]; then
-            echo "Skipping branch override for PyAutoFit (keeping main_build)"
-            popd
-            continue
-          fi
           export existed_in_remote=$(git ls-remote --heads origin ${BRANCH})
           if [[ -z ${existed_in_remote} ]]; then
             echo "Branch $BRANCH did not exist in $PACKAGE"