chore: remove v18 from CI and update ubuntu image version for csharp codegens in ci

Author: VShingala

.github/workflows/test.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       max-parallel: 10
       matrix:
-        node-version: [ 18.x, 20.x ]
+        node-version: [ 20.x ]
         language-variant: [ 'csharp-httpclient', 'csharp-restsharp', 'curl', 'dart-dio', 'dart-http', 'golang', 'http',
                    'java-okhttp', 'java-unirest', 'js-fetch', 'js-jquery', 'js-xhr', 'kotlin-okhttp', 'libcurl',
                    'nodejs-axios', 'nodejs-native', 'nodejs-request', 'nodejs-unirest', 'objective-c', 'ocaml-cohttp',

codegens/csharp-httpclient/test/ci-install.sh

@@ -5,7 +5,7 @@ sudo apt-get update
 echo "Installing dependencies required for tests in codegens/csharp-httpclient"
 # Install latest .net6.0 sdk
 pushd ./codegens/csharp-httpclient &>/dev/null;
-  wget -q https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
+  wget -q https://packages.microsoft.com/config/ubuntu/22.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
   sudo dpkg -i packages-microsoft-prod.deb
   sudo apt-get install apt-transport-https
   sudo apt-get update

codegens/csharp-restsharp/test/ci-install.sh

@@ -4,7 +4,7 @@ set -ev; # stop on error
 sudo apt-get update
 echo "Installing dependencies required for tests in codegens/csharp-restsharp"
 pushd ./codegens/csharp-restsharp &>/dev/null;
-  wget -q https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
+  wget -q https://packages.microsoft.com/config/ubuntu/22.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
   sudo dpkg -i packages-microsoft-prod.deb
   sudo apt-get install apt-transport-https
   sudo apt-get update