Upgrade to Ruby 2.7.6 to fix CVE-2022-28739

.github/workflows/js.yml

@@ -1,7 +1,7 @@
 # License: LGPL-3.0-or-later
 name: Javascript build and test
 env: 
-  ruby: '2.7.5'
+  ruby: '2.7.6'
 on: 
   pull_request:
     paths-ignore:

.github/workflows/notice_ruby.yml

@@ -14,7 +14,7 @@ on:
     types: [opened, reopened, synchronize]
 env:
   os: ubuntu-20.04
-  ruby: '2.7.5'
+  ruby: '2.7.6'
 jobs:
   notice_ruby:
     runs-on: ubuntu-20.04

.github/workflows/placeholders.yml

@@ -42,7 +42,7 @@ jobs:
       matrix:
         os: [ubuntu-20.04]
         node: [14.19.1]
-        ruby: [2.7.5]
+        ruby: [2.7.6]
     steps:
       - run: 'echo "Placeholder for main_build"'
   rubocop:
@@ -51,6 +51,6 @@ jobs:
       matrix:
         os: [ubuntu-20.04]
         node: [14.19.1]
-        ruby: [2.7.5]
+        ruby: [2.7.6]
     steps:
       - run: 'echo "Placeholder for rubocop"'

.github/workflows/ruby.yml

@@ -19,7 +19,7 @@ jobs:
       matrix:
         os: [ubuntu-20.04]
         node: [14.19.1]
-        ruby: [2.7.5]
+        ruby: [2.7.6]
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2
@@ -38,7 +38,7 @@ jobs:
       matrix:
         os: [ubuntu-20.04]
         node: [14.19.1]
-        ruby: [2.7.5]
+        ruby: [2.7.6]
     steps:
       - uses: actions/checkout@v2
       - name: Setup PostgreSQL with PostgreSQL extensions and unprivileged user
@@ -75,7 +75,7 @@ jobs:
       matrix:
         os: [ubuntu-20.04]
         node: [14.19.1]
-        ruby: [2.7.5]
+        ruby: [2.7.6]
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2

.ruby-version

@@ -1 +1 @@
-2.7.5
+2.7.6

README.md

@@ -64,7 +64,7 @@ These include:
 
 * PostgreSQL 12 (10 probably works)
 * NodeJS 14 (we require 14 because we want the full internationalization built-in)
-* Ruby 2.7.5
+* Ruby 2.7.6
 
 There a few optional tools which make working on Houdini
 easier
@@ -116,7 +116,7 @@ curl -sSL https://rvm.io/pkuczynski.asc | gpg --import -
 curl -sSL https://get.rvm.io | bash -s stable
 source $HOME/.rvm/scripts/rvm
 echo 'source "$HOME/.rvm/scripts/rvm"' >> ~/.bashrc
-rvm install 2.7.5 --disable-binary --with-jemalloc
+rvm install 2.7.6 --disable-binary --with-jemalloc
 ```
 
  Run the following command as the `postgres` user and then enter your houdini_user