Updates install shell script gvm references to sdkman.
Updates install shell script gvm references to sdkman.

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