Reduce SDK level to 2 for instrumentation tests

Signed-off-by: utzcoz <utzcoz@outlook.com>
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index d4fa315..97dea63 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -84,7 +84,7 @@
       # Allow tests to continue on other devices if they fail on one device.
       fail-fast: false
       matrix:
-        api-level: [ 26, 28, 29, 30 ]
+        api-level: [ 28, 30 ]
 
     steps:
       - uses: actions/checkout@v2