install-from-source(mariner): awk is required to make dotnet-install.sh work

The dotnet-install.sh script expects `awk` to be present, which is not
installed by default in Mariner Linux.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

src/linux/Packaging.Linux/install-from-source.sh

@@ -228,7 +228,7 @@ case "$distribution" in
         $sudo_cmd tdnf update -y
 
         # Install dotnet/GCM dependencies.
-        install_packages tdnf install "curl git krb5-libs libicu openssl-libs zlib findutils which bash"
+        install_packages tdnf install "curl git krb5-libs libicu openssl-libs zlib findutils which bash awk"
 
         ensure_dotnet_installed
     ;;