Refactor CVE service to remove unneeded extra service

src/main/java/org/eclipsefoundation/cve/api/GitlabCveAPI.java

@@ -45,7 +45,7 @@ public interface GitlabCveAPI {
     public static abstract class GitlabRequestParams {
 
         @PathParam("id")
-        public abstract String getId();
+        public abstract Integer getId();
 
         @PathParam("filePath")
         public abstract String getFilePath();
@@ -64,7 +64,7 @@ public interface GitlabCveAPI {
         @JsonPOJOBuilder(withPrefix = "set")
         public static abstract class Builder {
 
-            public abstract Builder setId(String id);
+            public abstract Builder setId(Integer id);
 
             public abstract Builder setFilePath(String filePath);