Fix workflows [skip ci]

.github/workflows/csharp.yml

@@ -52,7 +52,7 @@ jobs:
         shell: bash
         run: ci/scripts/csharp_test.sh $(pwd)
 
-  ubuntu:
+  windows:
     name: AMD64 Windows 2019 18.04 C# ${{ matrix.dotnet }}
     runs-on: windows-latest
     strategy:

.github/workflows/java-jni.yml

@@ -34,9 +34,11 @@ jobs:
   debian:
     name: AMD64 Debian 9 Java JNI and Plasma
     runs-on: ubuntu-latest
-    matrix:
-      jdk: [8]
-      maven: [3.5.2]
+    strategy:
+      fail-fast: false
+      matrix:
+        jdk: [8]
+        maven: [3.5.2]
     env:
       JDK: ${{ matrix.jdk }}
       MAVEN: ${{ matrix.maven }}

.github/workflows/java.yml

@@ -36,7 +36,7 @@ jobs:
       fail-fast: false
       matrix:
         jdk: [11]
-        maven: [3.5.2]
+        maven: [3.6.2]
     env:
       JDK: ${{ matrix.jdk }}
       MAVEN: ${{ matrix.maven }}