Don't upload codecov data from autorest and release jobs (#3725)

We currently have a problem in historic codecov data where coverage
jumps up and down between master commits. Examples
-
https://app.codecov.io/gh/pulumi/pulumi-azure-native/commit/0e7c8eefcfa8efc2927d5a8acc147925bd72fb02
-
https://app.codecov.io/gh/pulumi/pulumi-azure-native/commit/93fac42eb6f44197a625edce2aae360088ffd0f0

It turns out that the larger coverage number comes from two or three CI
jobs (master + scheduled autorest + release) and lower number is just
from master. Since we can't guarantee that we will run a release and an
autorest nightly on every commit, this PR disables coverage data on
those jobs.

We lose a little bit of coverage on that autorest legacy code, but I
think stability is more important. Also, a PR vs. master coverage will
be directly comparable.

.github/workflows/autorest-scheduled.yml

@@ -22,3 +22,4 @@ jobs:
       short_test: false
       retention_days: 7
       use_azcore: false
+      upload_codecov: false

.github/workflows/build-test.yml

@@ -26,6 +26,10 @@ on:
         type: boolean
         description: Whether to use the newer azcore+azidentity backend for REST and auth, or the older autorest
         default: true
+      upload_codecov:
+        type: boolean
+        description: Whether to upload coverage reports to Codecov
+        default: true
 
 env:
   GITHUB_TOKEN: ${{ secrets.PULUMI_BOT_TOKEN }}
@@ -330,6 +334,7 @@ jobs:
 
       - name: Upload coverage reports to Codecov
         uses: codecov/codecov-action@v4
+        if: inputs.upload_codecov
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 

.github/workflows/release.yml

@@ -22,6 +22,7 @@ jobs:
       # configured. See
       # https://learn.microsoft.com/en-us/azure/active-directory/workload-identities/workload-identity-federation-create-trust?pivots=identity-wif-apps-methods-azp#github-actions
       oidc_arm_client_id: ""
+      upload_codecov: false
 
   publish:
     uses: ./.github/workflows/publish.yml