issue #4193 - Allow - in database usernames (#4209)

When there are dashes (-) in the Postgres username, the schematool fails
with an exception. In Postgres, dashes are legal in usernames, so the
verifying pattern is adapted accordingly.

Signed-off-by: Bauer, Johannes <johannes.bauer@uk-erlangen.de>

fhir-database-utils/src/main/java/org/linuxforhealth/fhir/database/utils/common/DataDefinitionUtil.java

@@ -21,7 +21,7 @@
  * Handles common syntax for generating DDL
  */
 public class DataDefinitionUtil {
-    private static final String NAME_PATTERN_RGX = "[a-zA-Z_]\\w*$";
+    private static final String NAME_PATTERN_RGX = "[a-zA-Z_][-\\w]*$";
     private static final Pattern NAME_PATTERN = Pattern.compile(NAME_PATTERN_RGX);
 
     /**