fix: Remove unnecessary shell quoting from GITHUB_ENV write

Signed-off-by: andrewwhitecdw <andrewwhitecdw@users.noreply.github.com>

Author: andrewwhitecdw

.github/workflows/test-wheel-windows.yml

@@ -306,7 +306,7 @@ jobs:
 
       - name: Set up test repetition on nightly runs
         shell: bash --noprofile --norc -xeuo pipefail {0}
-        run: echo "PYTEST_ADDOPTS=\"--count=${{ inputs.nruns }}\"" >> "$GITHUB_ENV"
+        run: echo "PYTEST_ADDOPTS=--count=${{ inputs.nruns }}" >> "$GITHUB_ENV"
 
       # ── Standard test steps (skipped for nightly modes) ──
       - name: Run cuda.pathfinder tests with see_what_works