Migrate to Node.js 22

Author: ellmetha

.node-version

@@ -1 +1 @@
-18.17.0
+22.20.0

Dockerfile

@@ -6,11 +6,10 @@ ENV MARTEN_ENV=production
 
 RUN apt-get update
 RUN apt-get install -y curl
-RUN curl -fsSL https://deb.nodesource.com/setup_18.x | bash -
+RUN curl -fsSL https://deb.nodesource.com/setup_22.x | bash -
 RUN apt-get install -y nodejs libsqlite3-dev cmake build-essential
 
 RUN npm install
-RUN npm rebuild node-sass
 RUN npm run gulp -- build --production
 
 RUN shards install --without-development