Fixes benchmark tests on wheels

Author: misl6

.ci/ubuntu_ci.sh

@@ -105,7 +105,7 @@ test_kivy() {
 }
 
 test_kivy_benchmark() {
-  KIVY_NO_ARGS=1 python3 -m pytest "$(pwd)/kivy/tests" --benchmark-only
+  KIVY_NO_ARGS=1 pytest --pyargs kivy.tests --benchmark-only
 }
 
 test_kivy_install() {

.ci/windows_ci.ps1

@@ -110,7 +110,7 @@ function Test-kivy {
 }
 
 function Test-kivy-benchmark {
-    python -m pytest "$(pwd)/kivy/tests" --benchmark-only
+    pytest --pyargs kivy.tests --benchmark-only
 }
 
 function Test-kivy-installed {

.github/workflows/manylinux_wheels.yml

@@ -152,7 +152,7 @@ jobs:
       run: |
         source .ci/ubuntu_ci.sh
         test_kivy_benchmark
-    - name: Upload benchamrks as artifact
+    - name: Upload benchmarks as artifact
       uses: actions/upload-artifact@v2
       with:
         name: benchmarks