Merge pull request #33 from ksss/ruby-3.2

Update ruby v3.2

Author: ksss

.github/workflows/ci.yml

@@ -22,9 +22,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: ruby/setup-ruby@v1.59.1
+      - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '2.7'
+          ruby-version: '3.2'
       - name: Build and test
         env:
           CC: gcc
@@ -46,9 +46,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: ruby/setup-ruby@v1.59.1
+      - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '2.7'
+          ruby-version: '3.2'
       - name: Build and test
         env:
           CC: clang
@@ -70,9 +70,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: ruby/setup-ruby@v1.59.1
+      - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '2.7'
+          ruby-version: '3.2'
       - name: apt
         run: sudo apt install mingw-w64
       - name: Build and test
@@ -95,9 +95,9 @@ jobs:
     runs-on: windows-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: ruby/setup-ruby@v1.59.1
+      - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '2.7'
+          ruby-version: '3.2'
       - name: Build and test
         env:
           CFLAGS: -g -O1 -Wall -Wundef