Bump mono_repo to v5.0.1 (dart-lang/yaml_edit#150)

Also use latest task names

pkgs/yaml_edit/mono_pkg.yaml

diff --git a/pkgs/yaml_edit/mono_pkg.yaml b/pkgs/yaml_edit/mono_pkg.yaml
index a1ac6a4..8a0e4ee 100644
--- a/pkgs/yaml_edit/mono_pkg.yaml
+++ b/pkgs/yaml_edit/mono_pkg.yaml
@@ -4,7 +4,7 @@
 
 stages:
   - analyze:
-      - dartanalyzer
-      - dartfmt
+      - analyze
+      - format
   - tests:
       - test