feat: Spark 3.2 support

* Updated versions and fixed one override
* Removed Spark 2.4 support and renamed all 3.0 to 3.2.

Co-authored-by: Jolanrensen <j.j.r.rensen@student.tue.nl>

Author: asm0dey

.github/workflows/build.yml

@@ -26,22 +26,4 @@ jobs:
           restore-keys: ${{ runner.os }}-m2
       - name: Build with Maven
         run: ./mvnw -B package --file pom.xml -Pscala-2.12
-  build-scala-11:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v2
-      - name: Set up JDK 8
-        uses: actions/setup-java@v1
-        with:
-          java-version: 8
-      - name: Cache Maven packages
-        uses: actions/cache@v2
-        with:
-          path: ~/.m2
-          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
-          restore-keys: ${{ runner.os }}-m2
-      - name: Build with Maven
-        run: ./mvnw -B package --file pom.xml -Pscala-2.11
-
 # vim: ts=2:sts=2:sw=2:expandtab

README.md

@@ -27,7 +27,7 @@ We have opened a Spark Project Improvement Proposal: [Kotlin support for Apache
 - [Code of Conduct](#code-of-conduct)
 - [License](#license)
 
-## Supported versions of Apache Spark
+## Supported versions of Apache Spark #TODO
 
 | Apache Spark | Scala |  Kotlin for Apache Spark        |
 |:------------:|:-----:|:-------------------------------:|