Add stdlib9 support; test against branch

Author: bastelfreak

.fixtures.yml

@@ -1,8 +1,7 @@
 fixtures:
+  repositories:
+    stdlib: 'https://github.com/puppetlabs/puppetlabs-stdlib'
   forge_modules:
-    stdlib:
-      repo: "puppetlabs/stdlib"
-      ref: "8.4.0"
     inifile:
       repo: "puppetlabs/inifile"
       ref: "5.3.0"

metadata.json

@@ -10,7 +10,7 @@
   "dependencies": [
     {
       "name": "puppetlabs-stdlib",
-      "version_requirement": ">= 5.1.0 < 9.0.0"
+      "version_requirement": ">= 5.1.0 < 10.0.0"
     },
     {
       "name": "puppetlabs-inifile",