fix shellcheck issues (#55)

#### 📖 Summary

- fix shelchek issues in arkanum bash script

#### 📑 Test Plan

> 💡 Select your test plan for the code changes.

| Choice | Test Method       |
| :----: | :-----------      |
|   ✅   | CI pipeline tests |
|        | Custom test       |
|        | No test plan      |

##### Details / Justification

<!-- Add your test details or justification for missing tests here. -->

#### 📚 Additional Notes

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Co-authored-by: OCram85 <marco.blessing@googlemail.com>
Reviewed-on: #55

arkanum

@@ -67,6 +67,7 @@ function instDockerCLI() {
   sudo -E install -m 0755 -d /etc/apt/keyrings
   curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo -E gpg --dearmor -o /etc/apt/keyrings/docker.gpg
   sudo -E chmod a+r /etc/apt/keyrings/docker.gpg
+  # shellcheck disable=SC2046,SC2027
   echo \
   "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
   "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
@@ -90,6 +91,7 @@ function instDotNet() {
 
   say "Installing latest .NET Core LTS release..." "dotnet"
   /tmp/dotnet-install.sh --channel LTS
+  # shellcheck disable=SC2016
   echo 'export PATH=$PATH:/config/.dotnet' | sudo tee -a /etc/bash.bashrc > /dev/null
 
   say "Cleaning up..." "dotnet"
@@ -113,6 +115,7 @@ function instGoLang() {
   say "Installing golang ($GOVERSION)...." "GoLang"
   sudo rm -rf /usr/local/go
   sudo tar -C /usr/local -xzf /tmp/golang.tar.gz
+  # shellcheck disable=SC2016
   echo 'export PATH=$PATH:/usr/local/go/bin' | sudo tee -a /etc/bash.bashrc > /dev/null
   say "Cleaning up..." "GoLang"
   rm -f /tmp/golang.tar.gz
@@ -244,7 +247,7 @@ function main() {
     exit 0
   fi
 
-  for i in $@; do
+  for i in "$@"; do
     if [[ "$1" == "-h" ]]; then
       showHelp
       exit 0
@@ -253,7 +256,7 @@ function main() {
     elif [[ "$i" == "dotnet" ]]; then
       instDotNet
     elif [[ "$i" == "golang" ]]; then
-      instGoLang
+      instGoLang "$2"
     elif [[ "$i" == "nodejs" ]]; then
       if [[ "$2" == "--legacy" ]]; then
         sayW "Installing NodeJS with legacy function" "Arkanum"
@@ -285,4 +288,4 @@ function main() {
   done
 }
 
-main $@
+main "$@"