bump in-toto to graduated (#4235)

Signed-off-by: Bob Killen <bkillen@linuxfoundation.org>

landscape.yml

@@ -1296,7 +1296,7 @@ landscape:
           - item:
             name: in-toto
             homepage_url: https://in-toto.io
-            project: incubating
+            project: graduated
             repo_url: https://github.com/in-toto/in-toto
             logo: in-toto.svg
             crunchbase: https://www.crunchbase.com/organization/cloud-native-computing-foundation
@@ -1319,6 +1319,7 @@ landscape:
               summary_intro_url: https://in-toto.io/
               accepted: '2019-08-14'
               incubating: '2022-03-10'
+              graduated: '2025-02-10'
               dev_stats_url: https://intoto.devstats.cncf.io/
               artwork_url: https://github.com/cncf/artwork/blob/master/examples/sandbox.md#in-toto-logos
               slack_url: https://cloud-native.slack.com/messages/in-toto