nodejs: use system libuv

See https://github.com/void-linux/void-packages/issues/29034.

`shared-uv.patch` has been in the repo for a while but was slightly
broken.

srcpkgs/nodejs/patches/shared-uv.patch

@@ -16,7 +16,7 @@
          }],
 +        [ 'node_shared_libuv=="false"', {
 +          'dependencies': [ '../uv/uv.gyp:libuv' ],
-+        }]
++        }],
 +        [ 'node_shared_libuv=="true"', {
 +          'libraries': [ '-luv' ],
 +        }]

srcpkgs/nodejs/template

@@ -1,7 +1,7 @@
 # Template file for 'nodejs'
 pkgname=nodejs
 version=14.16.0
-revision=1
+revision=2
 wrksrc="node-v${version}"
 # Need these for host v8 for torque, see https://github.com/nodejs/node/pull/21079
 hostmakedepends="which pkg-config python3 libatomic-devel zlib-devel