feat(highlight): migrate to tree-house with Helix queries

Replace tree-sitter-highlight dep with tree-house crate from Helix
editor. Add ropey dependency required by tree-house.

Reorganize query files from Helix's runtime/queries/ for all 14
supported languages:
- bash, c, css, go, html, javascript, json, markdown, nix, python,
  rust, toml, typescript, yaml
- Include ecma, _javascript, _typescript base dirs for JS/TS inheritance
- Copy highlights.scm, injections.scm, locals.scm where available

This commit establishes the foundation; highlight.rs implementation
will follow in subsequent commits.

queries/yaml/injections.scm

@@ -0,0 +1,57 @@
+((comment) @injection.content
+ (#set! injection.language "comment"))
+
+; The following code in this file until the ";;; END nvim-treesitter LICENSED CODE"
+; marker incorporates work covered by the following copyright and permission notice:
+;
+;   Copyright 2023 the nvim-treesitter authors
+;
+;   Licensed under the Apache License, Version 2.0 (the "License");
+;   you may not use this file except in compliance with the License.
+;   You may obtain a copy of the License at
+;
+;       http://www.apache.org/licenses/LICENSE-2.0
+;
+;   Unless required by applicable law or agreed to in writing, software
+;   distributed under the License is distributed on an "AS IS" BASIS,
+;   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+;   See the License for the specific language governing permissions and
+;   limitations under the License.
+
+; Modified for Helix from https://github.com/nvim-treesitter/nvim-treesitter/blob/master/queries/yaml/injections.scm
+
+;; GitHub actions: run
+;; Buildkite: command, commands
+(block_mapping_pair
+  key: (flow_node) @_run (#any-of? @_run "run" "command" "commands")
+  value: (flow_node
+           (plain_scalar
+             (string_scalar) @injection.content)
+           (#set! injection.language "bash")))
+
+(block_mapping_pair
+  key: (flow_node) @_run (#any-of? @_run "run" "command" "commands")
+  value: (block_node
+           (block_scalar) @injection.content
+           (#set! injection.language "bash")))
+
+(block_mapping_pair
+  key: (flow_node) @_run (#any-of? @_run "run" "command" "commands")
+  value: (block_node
+           (block_sequence
+             (block_sequence_item
+                (flow_node
+                  (plain_scalar
+                    (string_scalar) @injection.content))
+                (#set! injection.language "bash")))))
+
+(block_mapping_pair
+  key: (flow_node) @_run (#any-of? @_run "run" "command" "commands")
+  value: (block_node
+           (block_sequence
+             (block_sequence_item
+               (block_node
+                  (block_scalar) @injection.content
+                  (#set! injection.language "bash"))))))
+
+;;; END nvim-treesitter LICENSED CODE