[ci-bitrise] Restore manage-ios-code-signing with platform pinned instead of removed

Removing it earlier also removed the cert/profile provisioning it does
before archive — same mechanism LC Wallet's pipeline actually relies on.
The export failure ('No profiles for com.br.pedifoods.app were found',
'Cloud signing permission error') was that provisioning step missing,
not a Developer Portal or API key permission problem — both were already
confirmed fine. Should have looked for a platform override on this step
first, same as xcode-archive@5, instead of deleting it outright.

bitrise.yml

@@ -105,6 +105,15 @@ workflows:
             - content: |
                 cd $BITRISE_SOURCE_DIR/Darwin
                 agvtool new-version -all $BITRISE_BUILD_NUMBER
+      - manage-ios-code-signing@2:
+          inputs:
+            - distribution_method: app-store
+            - project_path: $BITRISE_PROJECT_PATH
+            - scheme: $BITRISE_SCHEME
+            # SDKROOT = auto on this target (Skip's multi-platform build)
+            # breaks the step's own platform auto-detection — pin it,
+            # same fix as xcode-archive@5 below.
+            - platform: iOS
       - xcode-archive@5:
           inputs:
             - project_path: $BITRISE_PROJECT_PATH
@@ -112,8 +121,6 @@ workflows:
             - distribution_method: $BITRISE_DISTRIBUTION_METHOD
             - automatic_code_signing: api-key
             - register_test_devices: "no"
-            # SDKROOT = auto on this target (Skip's multi-platform build)
-            # breaks the step's own platform auto-detection — pin it.
             - platform: iOS
       - deploy-to-itunesconnect-deliver@2:
           inputs:
@@ -151,6 +158,12 @@ workflows:
             - content: |
                 cd $BITRISE_SOURCE_DIR/Darwin
                 agvtool new-version -all $BITRISE_BUILD_NUMBER
+      - manage-ios-code-signing@2:
+          inputs:
+            - distribution_method: app-store
+            - project_path: $BITRISE_PROJECT_PATH
+            - scheme: $BITRISE_SCHEME
+            - platform: iOS
       - xcode-archive@5:
           inputs:
             - project_path: $BITRISE_PROJECT_PATH