Improve install script of terraform-backend-git feature

src/terraform-backend-git/devcontainer-feature.json

@@ -1,6 +1,6 @@
 {
     "id": "terraform-backend-git",
-    "version": "1.1.0",
+    "version": "1.1.1",
     "name": "Terraform State management using Git",
     "documentationURL": "https://github.com/skriptfabrik/devcontainer-features/tree/main/src/terraform-backend-git",
     "description": "Installs terraform-backend-git binary.",

src/terraform-backend-git/install.sh

@@ -2,40 +2,28 @@
 
 set -e
 
-ADJUSTED_VERSION="${VERSION:-"latest"}"
-
-# Debian / Ubuntu packages
-install_debian_packages() {
-    # Install prerequisites
-    apt-get -y update
-    apt-get -y install --no-install-recommends curl ca-certificates
-
-    # Clean up
-    apt-get -y clean
-    rm -rf /var/lib/apt/lists/*
-}
+CLI_VERSION="${VERSION:-"latest"}"
 
 # Bring in ID, ID_LIKE, VERSION_ID, VERSION_CODENAME
 . /etc/os-release
 
 # Get an adjusted ID independent of distro variants
-if [ "${ID}" = "debian" ] || [ "${ID_LIKE}" = "debian" ]; then
-    ADJUSTED_ID="debian"
-else
+if [ "${ID}" != "debian" ] && [ "${ID_LIKE}" != "debian" ]; then
     echo "Linux distro ${ID} not supported."
     exit 1
 fi
 
-# Install packages for appropriate OS
-case "${ADJUSTED_ID}" in
-    "debian")
-        install_debian_packages
-        ;;
-esac
+# Install prerequisites
+apt-get -y update
+apt-get -y install --no-install-recommends curl ca-certificates jq
+
+# Clean up
+apt-get -y clean
+rm -rf /var/lib/apt/lists/*
 
 # Fetch latest version if needed
-if [ "${ADJUSTED_VERSION}" = "latest" ]; then
-    ADJUSTED_VERSION=$(curl -s https://api.github.com/repos/plumber-cd/terraform-backend-git/releases/latest | grep "tag_name" | awk '{print substr($2, 3, length($2)-4)}')
+if [ "${CLI_VERSION}" = "latest" ]; then
+    CLI_VERSION=$(curl -s https://api.github.com/repos/plumber-cd/terraform-backend-git/releases/latest | jq -r '.tag_name' | awk '{print substr($1, 2)}')
 fi
 
 # Detect current machine architecture
@@ -46,7 +34,7 @@ else
 fi
 
 # Download URL
-DOWNLOAD_URL="https://github.com/plumber-cd/terraform-backend-git/releases/download/v${ADJUSTED_VERSION}/terraform-backend-git-linux-${ARCH}"
+DOWNLOAD_URL="https://github.com/plumber-cd/terraform-backend-git/releases/download/v${CLI_VERSION}/terraform-backend-git-linux-${ARCH}"
 
 # Download and install terraform-backend-git
 echo "Downloading terraform-backend-git from ${DOWNLOAD_URL}"