Tests and the CI are compiling messages

.gitlab-ci.yml

@@ -7,6 +7,7 @@ py37:
   stage: test
   image: python:3.7-alpine
   before_script:
+    - apk add --no-cache gettext
     - pip install tox
   script: tox -e py3
 
@@ -14,6 +15,7 @@ py38:
   stage: test
   image: python:3.8-alpine
   before_script:
+    - apk add --no-cache gettext
     - pip install tox
   script: tox -e py3
 
@@ -22,6 +24,7 @@ py39:
   stage: test
   image: python:3.9-alpine
   before_script:
+    - apk add --no-cache gettext
     - pip install tox
   script: tox -e py3
 
@@ -29,6 +32,7 @@ linters:
   stage: quality-assurance
   image: python:3-alpine
   before_script:
+    - apk add --no-cache gettext
     - pip install tox
   script: tox -e linters
   allow_failure: true
@@ -37,7 +41,7 @@ build-deb:
   image: debian:buster-slim
   stage: build
   before_script:
-    - apt-get update && apt-get -y --no-install-recommends install build-essential debmake dh-python debhelper python3-all python3-setuptools
+    - apt-get update && apt-get -y --no-install-recommends install build-essential debmake dh-python debhelper gettext python3-all python3-setuptools
   script:
     - dpkg-buildpackage
     - mkdir build && cp ../*.deb build/