feat(readline): remove docs (#31932)

Split docs to own package to reduce size

Fixes:
shyim/wolfi-php#519

Related:

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readline.yaml

@@ -1,7 +1,7 @@
 package:
   name: readline
   version: 8.2.13
-  epoch: 0
+  epoch: 1
   description: "GNU readline library"
   copyright:
     - license: GPL-3.0-or-later
@@ -46,6 +46,13 @@ pipeline:
   - uses: strip
 
 subpackages:
+  - name: "readline-doc"
+    pipeline:
+      - uses: split/manpages
+      - runs: |
+          mkdir -p ${{targets.subpkgdir}}/usr/share/doc
+          mv ${{targets.destdir}}/usr/share/doc/readline ${{targets.subpkgdir}}/usr/share/doc/readline
+
   - name: "readline-dev"
     description: "GNU readline headers"
     pipeline: