build(snap): use nil package and try to setup node in override-build step

snap/snapcraft.yaml

@@ -16,10 +16,12 @@ architectures:
 
 parts:
   jellyseerr:
-    plugin: npm
-    npm-node-version: '18.18.2'
+    plugin: nil
     build-packages:
       - git
+      - ca-certificates
+      - curl
+      - gnupg
       - on arm64:
           - build-essential
           - automake
@@ -67,6 +69,20 @@ parts:
       - CYPRESS_INSTALL_BINARY: '0'
     override-build: |
       set -e
+      # Install necessary packages
+      mkdir -p /etc/apt/keyrings
+      # Add Node.js repository key
+      curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
+
+      # Set Node.js version
+      NODE_MAJOR=18
+      # Add Node.js repository to sources list
+      echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list
+
+      # Update package sources and install Node.js
+      apt-get update
+      apt-get install nodejs -y
+
       # Install Yarn
       npm install -g yarn
       # Set COMMIT_TAG before the build begins