Update c-cpp workflow for github regression tests.

I had been using Ubuntu 24.04 as the target platform for everything
however, that release doesn't have access to a number of the
clang and gcc versions we are testing so I had to roll those
back. This may require more tuning.

Author: rapier1

.github/workflows/c-cpp.yml

@@ -19,32 +19,41 @@ jobs:
         target:
           - ubuntu-20.04
           - ubuntu-22.04
-          - macos-12
+	  - ubuntu-24.04
+	  - macos-11
+	  - macos-12
           - macos-13
           - macos-14
           - windows-2019
           - windows-2022
         config: [default]
         # Then we include any extra configs we want to test for specific VMs.
         include:
+	  - { target: windows-2019, config: cygwin-release }
+          - { target: windows-2022, config: cygwin-release }
           - { target: ubuntu-22.04, config: valgrind-1 }
           - { target: ubuntu-22.04, config: valgrind-2 }
           - { target: ubuntu-22.04, config: valgrind-3 }
           - { target: ubuntu-22.04, config: valgrind-4 }
 #          - { target: ubuntu-22.04, config: valgrind-5 }
           - { target: ubuntu-22.04, config: valgrind-6 }
           - { target: ubuntu-22.04, config: valgrind-7 }
+	  - { target: ubuntu-22.04, config: valgrind-unit }
 # binn.c no longer works with c89 so remove this test.
 #          - { target: ubuntu-22.04, config: c89 }
           - { target: ubuntu-22.04, config: clang-6.0 }
-          - { target: ubuntu-22.04, config: clang-8 }
-          - { target: ubuntu-22.04, config: clang-9 }
-          - { target: ubuntu-22.04, config: clang-10 }
-          - { target: ubuntu-22.04, config: clang-11 }
-          - { target: ubuntu-22.04, config: clang-12-Werror }
-          - { target: ubuntu-22.04, config: gcc-7 }
-          - { target: ubuntu-22.04, config: gcc-8 }
-          - { target: ubuntu-22.04, config: gcc-10 }
+          - { target: ubuntu-20.04, config: clang-8 }
+          - { target: ubuntu-20.04, config: clang-9 }
+          - { target: ubuntu-20.04, config: clang-10 }
+          - { target: ubuntu-20.04, config: clang-11 }
+          - { target: ubuntu-20.04, config: clang-12-Werror }
+          - { target: ubuntu-20.04, config: clang-sanitize-address }
+          - { target: ubuntu-20.04, config: clang-sanitize-undefined }
+          - { target: ubuntu-20.04, config: gcc-sanitize-address }
+          - { target: ubuntu-20.04, config: gcc-sanitize-undefined }
+          - { target: ubuntu-20.04, config: gcc-7 }
+          - { target: ubuntu-20.04, config: gcc-8 }
+          - { target: ubuntu-20.04, config: gcc-10 }
           - { target: ubuntu-22.04, config: gcc-11-Werror }
           - { target: ubuntu-22.04, config: gcc-12-Werror }
           - { target: ubuntu-22.04, config: pam }
@@ -85,18 +94,14 @@ jobs:
           - { target: ubuntu-latest, config: putty-0.80 }
           - { target: ubuntu-latest, config: putty-snapshot }
           - { target: ubuntu-latest, config: zlib-develop }
-          - { target: ubuntu-24.04, config: pam }
-          - { target: ubuntu-24.04, config: krb5 }
-          - { target: ubuntu-24.04, config: heimdal }
-          - { target: ubuntu-24.04, config: libedit }
-          - { target: ubuntu-24.04, config: sk }
-          - { target: ubuntu-24.04, config: selinux }
-          - { target: ubuntu-24.04, config: kitchensink }
-          - { target: ubuntu-24.04, config: without-openssl }
-          - { target: ubuntu-24.04, config: clang-sanitize-address }
-          - { target: ubuntu-24.04, config: clang-sanitize-undefined }
-          - { target: ubuntu-24.04, config: gcc-sanitize-address }
-          - { target: ubuntu-24.04, config: gcc-sanitize-undefined }
+          - { target: ubuntu-22.04, config: pam }
+          - { target: ubuntu-22.04, config: krb5 }
+          - { target: ubuntu-22.04, config: heimdal }
+          - { target: ubuntu-22.04, config: libedit }
+          - { target: ubuntu-22.04, config: sk }
+          - { target: ubuntu-22.04, config: selinux }
+          - { target: ubuntu-22.04, config: kitchensink }
+          - { target: ubuntu-22.04, config: without-openssl }
 # we know pam doesn't work because we can't install a new pam file
 # for hpnssh via the CI test methods
 #          - { target: macos-12, config: pam }