ci.sh: Only run the script logic after input validation

The script's logic should only be run after the options and
arguments provided have been validated.

Signed-off-by: Tomás González <tomasagustin.gonzalezorlando@arm.com>

Author: tgonzalezorlandoarm

tests/ci.sh

@@ -41,8 +41,6 @@ if [[ ! -z ${RUST_TOOLCHAIN_VERSION:+x} ]]; then
 	rustup override set ${RUST_TOOLCHAIN_VERSION}
 fi
 
-rustup update
-
 BUILD="False"
 TEST="False"
 STATIC_CHECKS="False"
@@ -70,6 +68,8 @@ while [ "$#" -gt 0 ]; do
     shift
 done
 
+rustup update
+
 if [ "$BUILD" == "True" ]; then
     echo "OpenSSL version being used:"
     openssl version