Update CI

Author: pedro-psb

.github/workflows/ci.yml

@@ -61,7 +61,7 @@ jobs:
 
       - uses: ruby/setup-ruby@v1
         with:
-            ruby-version: "2.6"
+            ruby-version: "2.7"
 
       - name: Install httpie
         run: |

.github/workflows/docs.yml

@@ -5,13 +5,13 @@ on:
 
 jobs:
   test:
-    runs-on: "ubuntu-20.04"
+    runs-on: "ubuntu-latest"
     steps:
       - uses: "actions/checkout@v4"
       - name: "Set up Python"
         uses: "actions/setup-python@v5"
         with:
-          python-version: "3.11"
+          python-version: "3.12"
       - name: "Install Test Dependencies"
         run: |
           pip install -r doc_requirements.txt