erlang_ls: Add 'deps/*/' to include dirs

This allows scanning for `src/*.hrl` files under each deps directory
entry, fixing lookup for lines like:

    -include("src/rabbit_feature_flags.hrl").

in `deps/rabbit/src/rabbit_feature_flags.erl` or

    -include("src/amqp10_client.hrl").

in `deps/amqp10_client/test/mock_server.erl`.

(cherry picked from commit fcfd531)

Author: the-mikedavis

erlang_ls.config

@@ -17,6 +17,7 @@ diagnostics:
 include_dirs:
   - "deps"
   - "deps/*/include"
+  - "deps/*/"
   - "extra_deps"
   - "extra_deps/*/include"
 lenses: