CI: consistently test on 5.40 & 5.18 on all 3 major platforms

Author: mauke

.github/workflows/linux.yml

@@ -13,7 +13,9 @@ jobs:
       fail-fast: true
       matrix:
         perl-version:
-          - '5.38'
+          - '5.40'
+          # - '5.38'
+          # - '5.36'
           # - '5.34'
           # - '5.32'
           # - '5.30'

.github/workflows/macos.yml

@@ -13,7 +13,9 @@ jobs:
       fail-fast: true
       matrix:
         perl-version:
-          - '5.38'
+          - '5.40'
+          # - '5.38'
+          # - '5.36'
           # - '5.34'
           # - '5.32'
           # - '5.30'

.github/workflows/windows.yml

@@ -13,13 +13,18 @@ jobs:
       fail-fast: true
       matrix:
         perl-version:
-          - '5.30'
+          - '5.40'
+          # - '5.38'
+          # - '5.36'
+          # - '5.34'
+          # - '5.32'
+          # - '5.30'
           # - '5.28'
           # - '5.26'
           # - '5.24'
           # - '5.22'
           # - '5.20'
-          # - '5.18'
+          - '5.18'
           # - '5.16'
           - '5.14'
     steps: