Improve tree-sitter tests on emba

Improve tree-sitter tests on emba

* test/infra/Dockerfile.emba (emacs-tree-sitter): Install only
grammars which are needed.

* test/infra/Makefile.in (subdir_template): Special handling of
progmodes.
(TREE-SITTER-FILES): New variable.
(tree-sitter-files-template): New rule.
(.PHONY, generate-test-jobs): Add it to dependencies.

* test/infra/gitlab-ci.yml (.tree-sitter-template):
Add test/lisp/progmodes/*-ts-mode-resources/**.
(test-tree-sitter): Extends also .tree-sitter-files-template.  Use
$tree-sitter-files.

* test/infra/test-jobs.yml: Regenerate.