fix: eclipse-jdt-ls member autocompletion work

Pressing a dot after typing an instance variable in a Java method body
to see its members and other definitions as suggestions is not working
currently in eclipse-jdt-ls for Java.

While this is working for imports, methods do not get resolved. This
commit replaces a suspicious dot that may be related to this, which
causes the issue to get fixed.

settings.json

@@ -601,7 +601,7 @@
         "java"
       ],
       "config": {
-        "refresh_pattern": "\\([.a-zA-Z0-9_-]\\+\\|/\\|\\k\\+\\)$"
+        "refresh_pattern": "\\([a-zA-Z0-9_-]\\+\\|/\\|\\k\\+\\)$"
       },
       "root_uri_patterns": [
         "pom.xml",