Added Kotlin matrix to GitHub workflow

.github/workflows/bld.yml

@@ -2,6 +2,9 @@ name: bld-ci
 
 on: [push, pull_request, workflow_dispatch]
 
+env:
+  KOTLIN_HOME: /usr/share/kotlinc
+
 jobs:
   build-bld-project:
     runs-on: ubuntu-latest
@@ -9,6 +12,7 @@ jobs:
     strategy:
       matrix:
         java-version: [17, 21, 22]
+        kotlin-version: [ 1.19.24, 2.0.0 ]
 
     steps:
       - name: Checkout source repository
@@ -22,11 +26,8 @@ jobs:
           distribution: "zulu"
           java-version: ${{ matrix.java-version }}
 
-      - name: Grant execute permission for bld
+      - name: Download dependencies
-        run: chmod +x bld
-
-      - name: Download the dependencies
         run: ./bld download
 
-      - name: Run tests with bld
+      - name: Run tests
         run: ./bld compile test