Fix traefik www capture router (ITISFoundation#1029)

j2cli that we use preserves quotes around variable value being
substituted kolypto/j2cli#77. This leads to a
wrong label syntax (e.g. label="asda" instead of label=asda)

Related PR(s):
* ITISFoundation#1013

Related Issue(s):
* closes ITISFoundation#1028

Author: YuryHrytsuk

services/traefik/docker-compose.yml.j2

@@ -105,7 +105,8 @@ services:
         # via https://community.traefik.io/t/v2-2-8-global-redirect-www-to-non-www-with-http-to-https/7428
         # see also: https://community.traefik.io/t/get-a-valid-ssl-certificate-for-www-domains-via-traefik-and-lets-encrypt/2023
         # Global redirection: https (www.) to https
-        - traefik.http.routers.www-catchall.rule={{ DEPLOYMENT_FQDNS_WWW_CAPTURE_TRAEFIK_RULE.strip("\"") }}
+        # why .strip("\"'") ? --> https://github.com/kolypto/j2cli/issues/77
+        - traefik.http.routers.www-catchall.rule={{ DEPLOYMENT_FQDNS_WWW_CAPTURE_TRAEFIK_RULE.strip("\"'") }}
         - traefik.http.routers.www-catchall.priority=100000
         - traefik.http.routers.www-catchall.entrypoints=https,http
         - traefik.http.routers.www-catchall.tls=true