fix(ci): Update the AI integration test secrets (#15397)

Author: daymxn

.github/workflows/firebaseai.yml

@@ -56,13 +56,13 @@ jobs:
         path: .build
         key: ${{ needs.spm.outputs.cache_key }}
     - name: Install Secret GoogleService-Info.plist
-      run: scripts/decrypt_gha_secret.sh scripts/gha-encrypted/VertexAI/TestApp-GoogleService-Info.plist.gpg \
+      run: scripts/decrypt_gha_secret.sh scripts/gha-encrypted/FirebaseAI/TestApp-GoogleService-Info.plist.gpg \
         FirebaseAI/Tests/TestApp/Resources/GoogleService-Info.plist "$secrets_passphrase"
     - name: Install Secret GoogleService-Info-Spark.plist
-      run: scripts/decrypt_gha_secret.sh scripts/gha-encrypted/VertexAI/TestApp-GoogleService-Info-Spark.plist.gpg \
+      run: scripts/decrypt_gha_secret.sh scripts/gha-encrypted/FirebaseAI/TestApp-GoogleService-Info-Spark.plist.gpg \
         FirebaseAI/Tests/TestApp/Resources/GoogleService-Info-Spark.plist "$secrets_passphrase"
     - name: Install Secret Credentials.swift
-      run: scripts/decrypt_gha_secret.sh scripts/gha-encrypted/VertexAI/TestApp-Credentials.swift.gpg \
+      run: scripts/decrypt_gha_secret.sh scripts/gha-encrypted/FirebaseAI/TestApp-Credentials.swift.gpg \
         FirebaseAI/Tests/TestApp/Tests/Integration/Credentials.swift "$secrets_passphrase"
     - name: Xcode
       run: sudo xcode-select -s /Applications/${{ matrix.xcode }}.app/Contents/Developer

scripts/gha-encrypted/VertexAI/TestApp-Credentials.swift.gpg renamed to scripts/gha-encrypted/FirebaseAI/TestApp-Credentials.swift.gpg

@@ -0,0 +1,2 @@
+�	V��_;2����
�l���,�n%7��A{�Ȯ����?S(3�n���Py.�Q�&��C������јO�qU�k��H�һ�~-9�\��]��ru�����'���D��dm�ڽ�����m'���=Au�?s�k�ڿ4�U�C[���X=>ɉ+G����Hwu��w�`m��I,i�#���~��(������Y�]xG.��3!G�#���9����u.�%�t]3�h�}v\�t{[�8�~�Y��wY��@+���])c��\�RɓcΕ����w$��PNA�����f����m�8�hqsX��hzs�����E��6k<������H�>�>a�],�,�����E�9Ŀ�p��	�����_��ۥ����~ۀ����lv�=S6)P�Q`���Ɨ�J#�-�!Z9�ml.@��K݉yC�x�ʈ��X�B4c���54@N�[�(�:�~/� �֋��S�6EHj��T������D쮎H�nW҄o��Ks	;���'�����?K�F��_�L����)�:��
+|QM�0R@�T