fix: release-please version-file config and workflow API key auth

Author: georgeguimaraes

lib/faraday/http_cache/version.rb

@@ -2,6 +2,6 @@
 
 module Faraday
   class HttpCache
-    VERSION = '2.6.1'
+    VERSION = '2.7.0'
   end
 end

release-please-config.json

@@ -8,6 +8,7 @@
   "packages": {
     ".": {
       "release-type": "ruby",
+      "version-file": "lib/faraday/http_cache/version.rb",
       "changelog-sections": [
         {"type": "feat", "section": "Features", "hidden": false},
         {"type": "fix", "section": "Bug Fixes", "hidden": false},