ci(gitlab-ci): set expiration delay to 2 weeks for artifacts

.gitlab-ci.yml

@@ -80,6 +80,7 @@ build_doc:
   artifacts:
     paths:
       - .tox/doc/tmp/html
+    expire_in: 2 weeks
   allow_failure: true  # XXX fix me
 
 py3_server:
@@ -103,6 +104,7 @@ py3_server:
       - /builds/cubicweb/cubicweb/server.html
       - /builds/cubicweb/cubicweb/py3-server-deprecated-warnings.json
       - /reports/coverage-server.xml
+    expire_in: 2 weeks
 
 py3_web:
   rules:
@@ -124,6 +126,7 @@ py3_web:
       - /builds/cubicweb/cubicweb/web.html
       - /builds/cubicweb/cubicweb/py3-web-deprecated-warnings.json
       - /reports/coverage-web.xml
+    expire_in: 2 weeks
 
 py3_misc:
   rules:
@@ -145,6 +148,7 @@ py3_misc:
       - /builds/cubicweb/cubicweb/misc.html
       - /builds/cubicweb/cubicweb/py3-misc-deprecated-warnings.json
       - /reports/coverage-misc.xml
+    expire_in: 2 weeks
 
 py3-from-forge-server:
   rules:
@@ -165,6 +169,7 @@ py3-from-forge-server:
     paths:
       - /builds/cubicweb/cubicweb/from-forge-server.html
       - /builds/cubicweb/cubicweb/py3-from-forge-server-deprecated-warnings.json
+    expire_in: 2 weeks
   script:
     - tox -e py3-from-forge-server
 
@@ -188,6 +193,7 @@ py3-from-forge-web:
     paths:
       - /builds/cubicweb/cubicweb/from-forge-web.html
       - /builds/cubicweb/cubicweb/py3-from-forge-web-deprecated-warnings.json
+    expire_in: 2 weeks
 
 py3-from-forge-misc:
   rules:
@@ -209,6 +215,7 @@ py3-from-forge-misc:
     paths:
       - /builds/cubicweb/cubicweb/from-forge-misc.html
       - /builds/cubicweb/cubicweb/py3-from-forge-misc-deprecated-warnings.json
+    expire_in: 2 weeks
 
 trigger-readthedocs:
   rules: