test(ci): workaround codecov artifact signing errors

see: codecov/codecov-action#1940 (comment)
(solution from commits linked to issue + working per observed CI run status)

Author: mikehardy

.github/workflows/tests_emulator.yml

@@ -249,4 +249,8 @@ jobs:
       - uses: codecov/codecov-action@57e3a136b779b570ffcdbf80b3bdc90e7fab3de2 # v6.0.0
         with:
           verbose: true
-          fail_ci_if_error: ${{ github.repository == 'ankidroid/Anki-Android' }} # optional (default = false)
+          fail_ci_if_error: ${{ github.repository == 'ankidroid/Anki-Android' }} # optional (default = false)
+          # See https://github.com/codecov/codecov-action/issues/1940#issuecomment-4639834138
+          # ...and related commits. This uses a different install path to get the artifact so it has a valid signature
+          # without this as of 20260607 codecov fails signature verification and fails the build
+          use_pypi: true

.github/workflows/tests_unit.yml

@@ -199,3 +199,7 @@ jobs:
         with:
           verbose: true
           fail_ci_if_error: ${{ github.repository == 'ankidroid/Anki-Android' }} # optional (default = false)
+          # See https://github.com/codecov/codecov-action/issues/1940#issuecomment-4639834138
+          # ...and related commits. This uses a different install path to get the artifact so it has a valid signature
+          # without this as of 20260607 codecov fails signature verification and fails the build
+          use_pypi: true