Update join dates to sync with the landscape 2

Signed-off-by: Lukasz Gryglicki <[email protected]>

Author: lukaszgryglicki

projects.yaml

@@ -3352,7 +3352,7 @@ projects:
     command_line:
       - agones-dev,googleforgames/space-agon,googleforgames/global-multiplayer-demo
     start_date: 2018-03-05T00:00:00Z
-    join_date: 2026-03-12T00:00:00Z
+    join_date: 2025-12-25T00:00:00Z
     psql_db: agones
     shared_db: allprj
     main_repo: agones-dev/agones
@@ -3378,7 +3378,7 @@ projects:
     command_line:
       - openeverest
     start_date: 2024-01-04T00:00:00Z
-    join_date: 2026-03-19T00:00:00Z
+    join_date: 2026-03-15T00:00:00Z
     psql_db: openeverest
     shared_db: allprj
     main_repo: openeverest/openeverest
@@ -3391,7 +3391,7 @@ projects:
     command_line:
       - nmstate
     start_date: 2018-05-08T00:00:00Z
-    join_date: 2026-03-23T00:00:00Z
+    join_date: 2026-03-12T00:00:00Z
     psql_db: nmstate
     shared_db: allprj
     main_repo: nmstate/nmstate