[#26284] Minor refactoring

Reduce number of `trim()` and `toLowerCase()` calls.

extensions/panache/hibernate-orm-panache-common/runtime/src/main/java/io/quarkus/hibernate/orm/panache/common/runtime/CommonPanacheQueryImpl.java

@@ -82,17 +82,18 @@ public <T> CommonPanacheQueryImpl<T> project(Class<T> type) {
             throw new PanacheQueryException("Unable to perform a projection on a named query");
         }
 
-        if (query.trim().toLowerCase().startsWith("select new ")) {
+        String lowerCasedTrimmedQuery = query.trim().toLowerCase();
+        if (lowerCasedTrimmedQuery.startsWith("select new ")) {
             throw new PanacheQueryException("Unable to perform a projection on a 'select new' query: " + query);
         }
 
         // If the query starts with a select clause, we generate an HQL query
         // using the fields in the select clause:
         // Initial query: select e.field1, e.field2 from EntityClass e
         // New query: SELECT new org.acme.ProjectionClass(e.field1, e.field2) from EntityClass e
-        if (query.trim().toLowerCase().startsWith("select ")) {
+        if (lowerCasedTrimmedQuery.startsWith("select ")) {
+            int endSelect = lowerCasedTrimmedQuery.indexOf(" from ");
             String trimmedQuery = query.trim();
-            int endSelect = trimmedQuery.toLowerCase().indexOf(" from ");
             String selectClause = trimmedQuery.substring("SELECT ".length(), endSelect);
             String from = trimmedQuery.substring(endSelect);
             StringBuilder newQuery = new StringBuilder("select ");