chore: deprecate nopfs-kubo-plugin

plugin is now built into kubo v0.24.0+

Author: lidel

.github/workflows/release.yml renamed to .github/workflows/legacy-plugin.yml

@@ -1,7 +1,12 @@
-name: Kubo plugin
+# This workflow builds the legacy nopfs-kubo-plugin which is now deprecated.
+# Content blocking (nopfs) is built into Kubo v0.24.0 and later.
+# - See the built-in plugin at https://github.com/ipfs/kubo/tree/master/plugin/plugins/nopfs
+# - See the documentation at https://github.com/ipfs/kubo/blob/master/docs/content-blocking.md
+
+name: Legacy Kubo plugin
 
 on:
-  push:
+  workflow_dispatch:  # Manual trigger only - plugin is deprecated
 
 
 env:

nopfs-kubo-plugin/README.md

@@ -1,5 +1,10 @@
 # nopfs-kubo-plugin
 
+> [!WARNING]
+> This plugin is deprecated. Content blocking (nopfs) is now built into Kubo v0.24.0 and later.
+> - See the built-in plugin at https://github.com/ipfs/kubo/tree/master/plugin/plugins/nopfs
+> - See the documentation at https://github.com/ipfs/kubo/blob/master/docs/content-blocking.md
+
 ## Installation
 
   1. Copy the binary `nopfs-kubo-plugin` to `~/.ipfs/plugins`.