Update nightly jobs to use iOS 17 simulators (#2369)

Task/Issue URL: https://app.asana.com/0/414235014887631/1206407464978337/f
Tech Design URL:
CC: @graeme

Description:

This PR fixes nightly builds for iOS.

.github/workflows/nightly.yml

@@ -44,7 +44,7 @@ jobs:
       run: |
         set -o pipefail && xcodebuild test \
           -scheme "AtbUITests" \
-          -destination "platform=iOS Simulator,name=iPhone 14,OS=16.4" \
+          -destination "platform=iOS Simulator,name=iPhone 15,OS=17.2" \
           -derivedDataPath "DerivedData" \
           -skipPackagePluginValidation \
           | tee xcodebuild.log \
@@ -86,7 +86,7 @@ jobs:
       run: |
         set -o pipefail && xcodebuild test \
           -scheme "FingerprintingUITests" \
-          -destination "platform=iOS Simulator,name=iPhone 14,OS=16.4" \
+          -destination "platform=iOS Simulator,name=iPhone 15,OS=17.2" \
           -derivedDataPath "DerivedData" \
           -skipPackagePluginValidation \
           | xcbeautify --report junit --report-path . --junit-report-filename unittests.xml