Add dockerfile-ts-mode (Bug#59894)

* admin/notes/tree-sitter/build-module/batch.sh: Add dockerfile support.
* admin/notes/tree-sitter/build-module/build.sh: Support different
namespaces and add dockerfile support.
* etc/NEWS: Mention it.
* lisp/progmodes/dockerfile-ts-mode.el: New major mode with
tree-sitter support.
* lisp/progmodes/eglot.el (eglot-server-programs): Add it.

admin/notes/tree-sitter/build-module/batch.sh

@@ -5,6 +5,7 @@ languages=(
     'cpp'
     'css'
     'c-sharp'
+    'dockerfile'
     'go'
     'html'
     'javascript'

admin/notes/tree-sitter/build-module/build.sh

@@ -14,11 +14,15 @@ echo "Building ${lang}"
 
 ### Retrieve sources
 
+namespace="tree-sitter"
 repo="tree-sitter-${lang}"
 sourcedir="tree-sitter-${lang}/src"
 grammardir="tree-sitter-${lang}"
 
 case "${lang}" in
+    "dockerfile")
+        namespace="camdencheek"
+        ;;
     "typescript")
         sourcedir="tree-sitter-typescript/typescript/src"
         grammardir="tree-sitter-typescript/typescript"
@@ -30,7 +34,7 @@ case "${lang}" in
         ;;
 esac
 
-git clone "https://github.com/tree-sitter/${repo}.git" \
+git clone "https://github.com/${namespace}/${repo}.git" \
     --depth 1 --quiet
 cp "${grammardir}"/grammar.js "${sourcedir}"
 # We have to go into the source directory to compile, because some