Updates download shell script base dir location to $HOME/sdkman.
Updates download shell script base dir location to $HOME/sdkman.

busches/gvm-cli,skpal/sdkman-cli,skpal/sdkman-cli,jbovet/gvm,shanman190/sdkman-cli,sdkman/sdkman-cli,GsusRecovery/sdkman-cli,GsusRecovery/sdkman-cli,gvmtool/gvm-cli