Merge pull request ruby-docx#132 from mohanapriya2308/patch-1

Add test coverage for version 3.2

Author: satoryu

.github/workflows/ruby.yml

@@ -17,7 +17,7 @@ jobs:
 
     strategy:
       matrix:
-        ruby: [2.6, 2.7, "3.0", 3.1]
+        ruby: [2.6, 2.7, "3.0", 3.1, 3.2]
 
     steps:
     - uses: actions/checkout@v2