Fixed indentation in camel/test.properties (#5784)

The indentation was so wrong, that the file could not be parsed

Author: judovana

external/camel/test.properties

@@ -1,6 +1,6 @@
- github_url="https://github.com/apache/camel-quarkus.git"
- test_command="mvn clean install"
- test_results="testResults"
- tag_version="2.7.0"
- environment_variable="MODE=java"
+github_url="https://github.com/apache/camel-quarkus.git"
+test_command="mvn clean install"
+test_results="testResults"
+tag_version="2.7.0"
+environment_variable="MODE=java"
 generic_packages="git"