Fix RPM installation path in kasmvnc script

Simplify and unify the RPM installation process by using the
consistent temporary directory path for downloading RPM files.
This reduces potential errors and ensures uniform script behavior
between different OS installations.

kasmvnc/run.sh

@@ -27,8 +27,8 @@ install_rpm_oracle8() {
   wget $url -O /tmp/kasmvncserver.rpm
   sudo dnf config-manager --set-enabled ol8_codeready_builder
   sudo dnf install oracle-epel-release-el8 -y
-  sudo dnf localinstall ./kasmvncserver_*.rpm -y
+  sudo dnf localinstall /tmp/kasmvncserver.rpm -y
-  sudo usermod -a -G kasmvnc-cert $USER
+  sudo usermod -aG kasmvnc-cert $USER
   rm /tmp/kasmvncserver.rpm
 }
 
@@ -37,8 +37,8 @@ install_rpm_centos7() {
   local url=$1
   wget $url -O /tmp/kasmvncserver.rpm
   sudo yum install epel-release -y
-  sudo yum install ./kasmvncserver_*.rpm -y
+  sudo yum install /tmp/kasmvncserver.rpm -y
-  sudo usermod -a -G kasmvnc-cert $USER
+  sudo usermod -aG kasmvnc-cert $USER
   rm /tmp/kasmvncserver.rpm
 }