chore: remove unused google-services-file from POS release workflows (#360)

The google-services-file secret was being passed to release-ios-base.yaml but that workflow never declared or used this secret, making it dead code. Remove from both pos-app and poc-pos-app iOS release configurations.

Co-authored-by: Claude Haiku 4.5 <noreply@anthropic.com>

Author: ignaciosantise

.github/workflows/release-pos-poc.yaml

@@ -64,6 +64,5 @@ jobs:
       match-keychain-password: ${{ secrets.MATCH_KEYCHAIN_PASSWORD }}
       match-git-url: ${{ secrets.MATCH_GIT_URL }}
       match-ssh-key: ${{ secrets.MATCH_SSH_KEY }}
-      google-services-file: ${{ secrets.POC_POS_IOS_GOOGLE_SERVICES_FILE_BASE64 }}
       slack-webhook-url: ${{ secrets.SLACK_WEBHOOK_URL }}
       testflight-url: ${{ vars.TESTFLIGHT_POC_POS_URL }}

.github/workflows/release-pos.yaml

@@ -68,6 +68,5 @@ jobs:
       match-keychain-password: ${{ secrets.MATCH_KEYCHAIN_PASSWORD }}
       match-git-url: ${{ secrets.MATCH_GIT_URL }}
       match-ssh-key: ${{ secrets.MATCH_SSH_KEY }}
-      google-services-file: ${{ secrets.POS_IOS_GOOGLE_SERVICES_FILE_BASE64 }}
       slack-webhook-url: ${{ secrets.SLACK_WEBHOOK_URL }}
       testflight-url: ${{ vars.TESTFLIGHT_POS_URL }}