ci: ccache should create symlinks so it is used

during the change over to apple silicon, our ccache stopped
actually being used during compilation, "no objects cached"

brew paths are different between intel and apple silicon, so
the old path addition we made was no longer correct

it is possible to just ask the action to make symlinks for us,
now we take advantage of that feature and /usr/local/bin has
the links so they're in the path

Author: mikehardy

.github/workflows/tests_e2e_ios.yml

@@ -79,6 +79,7 @@ jobs:
         name: Xcode Compile Cache
         with:
           key: ${{ runner.os }}-v2 # makes a unique key w/related restore key internally
+          create-symlink: true
           max-size: 1500M
 
       - name: Yarn Install
@@ -138,7 +139,6 @@ jobs:
 
       - name: Build iOS App
         run: |
-          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
           export CCACHE_SLOPPINESS=clang_index_store,file_stat_matches,include_file_ctime,include_file_mtime,ivfsoverlay,pch_defines,modules,system_headers,time_macros
           export CCACHE_FILECLONE=true
           export CCACHE_DEPEND=true
@@ -148,6 +148,8 @@ jobs:
           export SKIP_BUNDLING=1
           export RCT_NO_LAUNCH_PACKAGER=1
           set -o pipefail
+          echo $PATH
+          which clang
           yarn tests:ios:build
           ccache -s
         shell: bash