Ruby -- v1.1.0 -- drop support for 2.7 (#904)

The squash merge directly before this included the WHOLE comment for this long lived branch. This isn't what's included in THIS commit, it's what was included in the last commit, that will go through to publishing hopefully now that the issue with the disappearing .gem folder is fixed 🤞

* Ruby drop support for 2.7 because GH's MacOS-12 runner no longer exists (~actions/runner-images#10721)
* Dupe dependabot's #902
* Add rvm de-wraps to gh wfs, update rdoc and rubocop
* Move rubocop linting to its own recipe and add new cops
* Fix a spelling mistake lol
* Set gem system version to the most recent version that still works on ruby 3.0
* Bump the minor version and ensure the .gem folder exists when publishing

.github/workflows/ruby-build.yaml

@@ -130,6 +130,7 @@ jobs:
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       run: |
+        mkdir -p ~/.gem
         echo -e "---\n:github: Bearer $GITHUB_TOKEN" > ~/.gem/credentials
         chmod 0600 ~/.gem/credentials
         make push_github ${{ env.disable_rvm_proctoring }}
@@ -138,6 +139,7 @@ jobs:
       env:
         RUBYGEMS_API_KEY_BASE64: ${{ secrets.RUBYGEMS_API_KEY_BASE64 }}
       run: |
+        mkdir -p ~/.gem
         echo -n "$RUBYGEMS_API_KEY_BASE64" | base64 --decode > ~/.gem/credentials
         chmod 0600 ~/.gem/credentials
         make push_rubygems ${{ env.disable_rvm_proctoring }}

ruby/lib/collatz/version.rb

@@ -2,5 +2,5 @@
 
 module Collatz
   # The current semver version.
-  VERSION = "1.0.1"
+  VERSION = "1.1.0"
 end