Drop ruby 2.6 ; build using Ruby 3.2.

Author: blambeau

.github/workflows/integration.yml

@@ -13,7 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         # Due to https://github.com/actions/runner/issues/849, we have to use quotes for '3.0'
-        ruby: [2.6, 2.7, 3.1, 3.2]
+        ruby: [2.7, 3.1, 3.2]
     env:
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
     steps:

.github/workflows/releases.yml

@@ -25,7 +25,7 @@ jobs:
 
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.1
+          ruby-version: 3.2
           bundler-cache: true
 
       - run: make package
@@ -57,7 +57,7 @@ jobs:
 
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.1
+          ruby-version: 3.2
           bundler-cache: true
 
       - run: make package

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## 0.12.1 - 2025/03/20
 
 * Allow Hash as bulttin type recognized by JsonSchema generation.
+* Remove Ruby 2.6 from supported versions. Requirement is Ruby 2.7.
 
 ## 0.12.0 - 2023/05/23