[ci] Download LFS submodules during tests

.gitlab-ci.yml

@@ -6,3 +6,9 @@
 include:
   - project: biosignal/software/dev-profile
     file: /gitlab/python.yml
+
+tests:
+  before_script:
+    - git submodule sync
+    - git submodule update --init
+    - !reference [.snippets, test-prepare]

.pre-commit-config.yaml

@@ -52,7 +52,11 @@ repos:
               )
       - id: check-toml
       - id: check-yaml
-        exclude: conda/meta.yaml
+        exclude: |
+          (?x)(
+              ^conda/meta.yaml|
+              ^.gitlab-ci.yml
+              )
       - id: debug-statements
       - id: check-case-conflict
       - id: trailing-whitespace