intellij: add run configurations for fietsje and gazelle

Test Plan: Did the thing

X-Origin-Diff: phab/D662
GitOrigin-RevId: a2b6da33c09256e78774e83e84972034131fcb77
diff --git a/.bazelproject b/.bazelproject
index 7fac025..f1eca12 100644
--- a/.bazelproject
+++ b/.bazelproject
@@ -28,6 +28,9 @@
   intellij/run/e2e_test_in_dbg_mode.xml
   intellij/run/e2e_test_in_dbg_mode_with_dlv.xml
 
+  intellij/run/Run__fietsje.xml
+  intellij/run/Run__gazelle.xml
+
   intellij/run/Run_all_tests.xml
 
   intellij/run/Run_single_node_cluster.xml