Merge branch 'ci/prepare-lock' into 'master'

[CI] Prepare lock file on build

See merge request !843

.gitlab-ci.yml

 include:
     - project: "AlekSIS/official/AlekSIS"
       file: /ci/general.yml
+    - project: "AlekSIS/official/AlekSIS"
+      file: /ci/prepare/lock.yml
     - project: "AlekSIS/official/AlekSIS"
       file: /ci/test/test.yml
     - project: "AlekSIS/official/AlekSIS"

CHANGELOG.rst

@@ -27,6 +27,8 @@ Changed
 ~~~~~~~
 
 * Modified the appearance of tables for mobile users to be more user friendly
+* [Dev] Remove lock file; locking dependencies is the distribution's
+  responsibility
 
 Removed
 ~~~~~~~