update install scripts

scripts/install-fedora.sh

@@ -6,4 +6,4 @@ sudo dnf install -y \
     qt5-qtwebsockets-devel \
     openconnect
 
-./install.sh
+./scripts/install.sh

scripts/install-opensuse.sh

@@ -6,4 +6,4 @@ sudo zypper install -y \
     libqt5-qtwebengine-devel \
     openconnect
 
-./install.sh
+./scripts/install.sh

scripts/install-ubuntu.sh

@@ -8,4 +8,4 @@ sudo apt install -y \
     qtwebengine5-dev \
     openconnect
 
-./install.sh
+./scripts/install.sh