ci(react-native): bump min ios version for test fixtures below RN 0.73

bin/generate-react-native-fixture

@@ -213,18 +213,6 @@ function configureRN064Fixture(fixtureDir) {
   moduleGradle = moduleGradle.replace(currentReactConfig, updatedReactConfig).replace(flipperDependencies, '')
   fs.writeFileSync(moduleGradlePath, moduleGradle)
 
-  // iOS
-  const podfilePath = resolve(fixtureDir, 'ios/Podfile')
-  let podfile = fs.readFileSync(podfilePath, 'utf8')
-
-  // disable flipper
-  podfile = podfile.replace("use_flipper!", "# use_flipper!")
-
-  // bump the minimum iOS version to 11
-  podfile = podfile.replace("platform :ios, '10.0'", "platform :ios, '11.0'")
-
-  fs.writeFileSync(podfilePath, podfile)
-
   // set --openssl-legacy-provider node option in pbxproj file
   const pbxprojPath = resolve(fixtureDir, 'ios/reactnative.xcodeproj/project.pbxproj')
   let pbxproj = fs.readFileSync(pbxprojPath, 'utf8')
@@ -331,6 +319,11 @@ function replaceGeneratedFixtureFiles() {
     podfileContents = podfileContents.replace(/:flipper_configuration/, '# :flipper_configuration')
   }
 
+  // for RN versions < 0.73, bump the minimum iOS version to 13 (required for Cocoa Performance)
+  if (parseFloat(reactNativeVersion) < 0.73) {
+    podfileContents = podfileContents.replace(/platform\s*:ios,\s*(?:'[\d.]+'|min_ios_version_supported)/, "platform :ios, '13.0'")
+  }
+
   fs.writeFileSync(`${fixtureDir}/ios/Podfile`, podfileContents)
 
   // pin xcodeproj version to < 1.26.0