ci: suppress pytest streaming output in CI (#36092)

Reduce CI log noise by suppressing pytest's per-test dot/verbose
streaming output. The `_test.yml` workflow now passes `PYTEST_EXTRA=-q`
to `make test`, which overrides the default verbosity with quiet mode —
failures still print in full, but the thousands of `.......` progress
lines are gone. Local `make test` is unaffected since `PYTEST_EXTRA`
defaults empty.

## Changes
- Add `PYTEST_EXTRA ?=` variable to all 21 package Makefiles and inject
it into each `test` target's pytest invocation
- Pass `PYTEST_EXTRA=-q` in `_test.yml` for both the main test step and
the min-version retest step

.github/workflows/_test.yml

@@ -50,7 +50,7 @@ jobs:
       - name: "🧪 Run Core Unit Tests"
         shell: bash
         run: |
-          make test
+          make test PYTEST_EXTRA=-q
 
       - name: "🔍 Calculate Minimum Dependency Versions"
         working-directory: ${{ inputs.working-directory }}
@@ -69,7 +69,7 @@ jobs:
           MIN_VERSIONS: ${{ steps.min-version.outputs.min-versions }}
         run: |
           VIRTUAL_ENV=.venv uv pip install $MIN_VERSIONS
-          make tests
+          make tests PYTEST_EXTRA=-q
         working-directory: ${{ inputs.working-directory }}
 
       - name: "🧹 Verify Clean Working Directory"