Pin Ruby 3.1 testing to 3.1.4
Pin to working version while under investigation as import_fragments testcase fails.
See issue #2800
Seems to be same crash as Ruby 3.2.5, see fab27c67ccb66f40001048a6ed5c2927d57b13dc
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d088bdf..3069bf2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -185,7 +185,7 @@
VER: '3.0'
CPPSTD: c++11
- SWIGLANG: ruby
- VER: '3.1'
+ VER: '3.1.4' # import_fragments testcase started to fail on upgrade to 3.1.5, see https://github.com/swig/swig/issues/2800
CPPSTD: c++11
- SWIGLANG: ruby
CPPSTD: c++11