Add Fedora 31, drop Fedora 26

Fedora 26 is EOL. Fedora 32 is not added since there are no packages
available.

Author: ekohl

.sync.yml

@@ -4,6 +4,7 @@
     - centos6-64
     - debian9-64
     - debian10-64
+    - fedora31-64
     - ubuntu1804-64
   env:
     global:

.travis.yml

@@ -67,6 +67,28 @@ matrix:
         - echo '{"ipv6":true,"fixed-cidr-v6":"2001:db8:1::/64"}' | sudo tee /etc/docker/daemon.json
         - sudo service docker restart
 
+    - rvm: 2.5.1
+      env:
+        - BEAKER_PUPPET_COLLECTION=puppet5
+        - BEAKER_setfile=fedora31-64{hostname=fedora31-64.example.com}
+      script: bundle exec rake beaker
+      services: docker
+      bundler_args: --without development
+      before_install:
+        - echo '{"ipv6":true,"fixed-cidr-v6":"2001:db8:1::/64"}' | sudo tee /etc/docker/daemon.json
+        - sudo service docker restart
+
+    - rvm: 2.5.1
+      env:
+        - BEAKER_PUPPET_COLLECTION=puppet6
+        - BEAKER_setfile=fedora31-64{hostname=fedora31-64.example.com}
+      script: bundle exec rake beaker
+      services: docker
+      bundler_args: --without development
+      before_install:
+        - echo '{"ipv6":true,"fixed-cidr-v6":"2001:db8:1::/64"}' | sudo tee /etc/docker/daemon.json
+        - sudo service docker restart
+
     - rvm: 2.5.1
       env:
         - BEAKER_PUPPET_COLLECTION=puppet5

metadata.json

@@ -65,7 +65,7 @@
     {
       "operatingsystem": "Fedora",
       "operatingsystemrelease": [
-        "26"
+        "31"
       ]
     },
     {