Update gradle, actions and fix typo in branch

.github/workflows/gradle.yml

@@ -3,23 +3,24 @@ name: Java CI
 on:
   push:
     branches:
-    - v4
-    - v5
-    - leagcy/1.8-1.12
+    - 'v4'
+    - 'v5'
+    - 'legacy/1.8-1.12'
   pull_request:
     branches:
-    - v4
-    - v5
-    - leagcy/1.8-1.12
+    - 'v4'
+    - 'v5'
+    - 'legacy/1.8-1.12'
  
 jobs:
   test:
     runs-on: ubuntu-18.04
 
     steps:
-    - uses: actions/checkout@v1
-    - name: Set up JDK 1.8
-      uses: actions/setup-java@v1
+    - name: Checkout
+      uses: actions/checkout@v2.0.0
+    - name: Setup Java JDK 1.8
+      uses: actions/setup-java@v1.3.0
       with:
         java-version: 1.8
     - name: Gradle Wrapper Validation

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Thu Feb 20 15:17:22 CET 2020
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.2-all.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew.bat

@@ -29,6 +29,9 @@ if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"