fix(ci): Set REACT_NATIVE_NODE_MODULES_DIR for perf test iOS builds

The podspec's node resolution finds packages/core/node_modules/react-native
(0.80.1) instead of the perf test app's (0.85.1) due to yarn workspace
symlink resolution. This causes NEW_HERMES_RUNTIME to not be defined,
and the old Hermes static profiling API (removed in RN 0.85) to be compiled.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: antonis

.github/workflows/e2e-v2.yml

@@ -157,6 +157,7 @@ jobs:
             if [[ ${{ matrix.rn-architecture }} == 'new' ]]; then
               export RCT_NEW_ARCH_ENABLED=1
             fi
+            export REACT_NATIVE_NODE_MODULES_DIR="$PWD/../node_modules/react-native"
             bundle install
             bundle exec pod install
             cd ../..
@@ -188,6 +189,7 @@ jobs:
             if [[ ${{ matrix.rn-architecture }} == 'new' ]]; then
               export RCT_NEW_ARCH_ENABLED=1
             fi
+            export REACT_NATIVE_NODE_MODULES_DIR="$PWD/../node_modules/react-native"
             bundle install
             bundle exec pod install
             cd ../..