upgrade to GNU coreutils 9.5 as ref

.github/workflows/GnuTests.yml

@@ -46,7 +46,7 @@ jobs:
         outputs path_GNU path_GNU_tests path_reference path_UUTILS
         #
         repo_default_branch="${{ github.event.repository.default_branch }}"
-        repo_GNU_ref="v9.4"
+        repo_GNU_ref="v9.5"
         repo_reference_branch="${{ github.event.repository.default_branch }}"
         outputs repo_default_branch repo_GNU_ref repo_reference_branch
         #
@@ -344,7 +344,7 @@ jobs:
       with:
         repository: 'coreutils/coreutils'
         path: 'gnu'
-        ref: 'v9.4'
+        ref: 'v9.5'
         submodules: recursive
     - uses: dtolnay/rust-toolchain@master
       with:

util/build-gnu.sh

@@ -60,7 +60,7 @@ fi
 
 ###
 
-release_tag_GNU="v9.4"
+release_tag_GNU="v9.5"
 
 if test ! -d "${path_GNU}"; then
     echo "Could not find GNU coreutils (expected at '${path_GNU}')"