Update Node version

.docker-mongo/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:12.16.1-buster-slim
+FROM node:12.18.3-buster-slim
 
 LABEL maintainer="[email protected]"
 

.docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:12.16.1-buster-slim
+FROM node:12.18.3-buster-slim
 
 LABEL maintainer="[email protected]"
 

.github/workflows/build_and_test.yml

@@ -30,10 +30,10 @@ jobs:
         echo "github.event_name: ${{ github.event_name }}"
         cat $GITHUB_EVENT_PATH
 
-    - name: Use Node.js 12.16.1
+    - name: Use Node.js 12.18.3
       uses: actions/setup-node@v1
       with:
-        node-version: "12.16.1"
+        node-version: "12.18.3"
 
     - uses: actions/checkout@v2
 
@@ -175,7 +175,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: ["12.16.1"]
+        node-version: ["12.18.3"]
         mongodb-version: ["3.4", "3.6", "4.0"]
 
     steps:
@@ -290,10 +290,10 @@ jobs:
         path: ~/.meteor
         key: ${{ runner.OS }}-meteor-${{ hashFiles('.meteor/release') }}-${{ hashFiles('.github/workflows/build_and_test.yml') }}
 
-    - name: Use Node.js 12.16.1
+    - name: Use Node.js 12.18.3
       uses: actions/setup-node@v1
       with:
-        node-version: "12.16.1"
+        node-version: "12.18.3"
 
     - name: Install Meteor
       run: |

.snapcraft/resources/preparenode

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-node_version="v12.16.1"
+node_version="v12.18.3"
 
 unamem="$(uname -m)"
 if [[ $unamem == *aarch64* ]]; then