Add required gitignore and github properties to test files

- Add gitignore=.gitignore and github=.github to all archetype.properties test files
- Restore missing javaVersion properties in java11, java21, and snapshot-version tests

Author: Ben Asmussen

src/test/resources/projects/basic/archetype.properties

@@ -2,4 +2,6 @@ groupId=com.example.test
 artifactId=test-project
 version=1.0.0-SNAPSHOT
 package=com.example.test
-javaVersion=17
+
+gitignore=.gitignore
+github=.github

src/test/resources/projects/custom-package/archetype.properties

@@ -2,4 +2,6 @@ groupId=com.mycompany
 artifactId=custom-pkg-app
 version=1.5.0
 package=org.custompackage.application
-javaVersion=17
+
+gitignore=.gitignore
+github=.github

src/test/resources/projects/default-package/archetype.properties

@@ -2,4 +2,6 @@ groupId=org.mycompany
 artifactId=default-pkg-app
 version=2.0.0
 package=org.mycompany
-javaVersion=17
+
+gitignore=.gitignore
+github=.github

src/test/resources/projects/java11/archetype.properties

@@ -2,4 +2,6 @@ groupId=org.testjava11
 artifactId=java11-app
 version=2.3.1
 package=org.testjava11
-javaVersion=11
+javaVersion=11
+gitignore=.gitignore
+github=.github

src/test/resources/projects/java21/archetype.properties

@@ -2,4 +2,6 @@ groupId=com.example.java21
 artifactId=test-java21
 version=1.0.0
 package=com.example.java21
-javaVersion=21
+javaVersion=21
+gitignore=.gitignore
+github=.github

src/test/resources/projects/snapshot-version/archetype.properties

@@ -2,4 +2,6 @@ groupId=com.snapshot.test
 artifactId=snapshot-app
 version=3.0.0-SNAPSHOT
 package=com.snapshot.test.app
-javaVersion=21
+javaVersion=21
+gitignore=.gitignore
+github=.github

src/test/resources/projects/special-chars/archetype.properties

@@ -2,4 +2,6 @@ groupId=io.example.test
 artifactId=my-special-app
 version=1.0.0-RC1
 package=io.example.test
-javaVersion=17
+
+gitignore=.gitignore
+github=.github