#33 Update spark test to 3.2.1

Author: Zejnilovic

.github/workflows/test.yml

@@ -27,11 +27,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        scala: [2.11.12, 2.12.14]
-        spark: [2.4.8, 3.1.2]
+        scala: [2.11.12, 2.12.15]
+        spark: [2.4.8, 3.2.1]
         exclude:
           - scala: 2.11.12
-            spark: 3.1.2
+            spark: 3.2.1
     name: Test Spark ${{matrix.spark}} on Scala ${{matrix.scala}}
     steps:
       - name: Checkout code