chore: bump keep-the-why to 0.10.1 (#2892)

* chore: bump keep-the-why to 0.10.0

* chore: bump keep-the-why to 0.10.1

0.10.1 released after this PR was opened for 0.10.0 - updates
version/source.ref to v0.10.1 and regenerates
.github/plugin/marketplace.json to match.

plugins/external.json

@@ -660,7 +660,7 @@
   {
     "name": "keep-the-why",
     "description": "Preserves or recovers the reasoning behind a codebase — architectural decisions, rejected alternatives, workarounds, incident learnings, operational constraints, and historical context the code itself cannot explain.",
-    "version": "0.9.2",
+    "version": "0.10.1",
     "author": {
       "name": "Oliver Zehentleitner",
       "url": "https://github.com/oliver-zehentleitner"
@@ -679,7 +679,7 @@
     "source": {
       "source": "github",
       "repo": "oliver-zehentleitner/keep-the-why",
-      "ref": "v0.9.2"
+      "ref": "v0.10.1"
     }
   },
   {