Merge pull request #61 from jagaapple/feature/change-required-dependencies-version

# Changes and Fixes
- Use Node.js 16.15.1 for development
- Drop support for Node.js 10.x and 12.x, add support for 16.x and 18.x
- Drop support for Next.js 8.x and 9.x

Author: jagaapple

.github/workflows/build-and-test.yml

@@ -20,7 +20,7 @@ jobs:
     needs: "parameters"
     strategy:
       matrix:
-        node: ["10.15", "12.13", "14.15"]
+        node: ["14.15", "16.15", "18.7"]
     steps:
       - uses: "actions/checkout@v2"
       - name: "Use Node.js"
@@ -43,7 +43,7 @@ jobs:
     runs-on: "ubuntu-latest"
     strategy:
       matrix:
-        node: ["10.15", "12.13", "14.15"]
+        node: ["14.15", "16.15", "18.7"]
     steps:
       - uses: "actions/checkout@v2"
       - name: "Use Node.js"
@@ -61,7 +61,7 @@ jobs:
       - name: "Execute tests"
         run: "npm test"
       - name: "Calculate coverage rate"
-        if: "matrix.node == '12.13'"
+        if: "matrix.node == '16.15'"
         env:
           CODECOV_TOKEN: "${{ secrets.CODECOV_TOKEN }}"
         run: "npm run coverage"
@@ -72,7 +72,7 @@ jobs:
     runs-on: "ubuntu-latest"
     strategy:
       matrix:
-        node: ["10.15", "12.13", "14.15"]
+        node: ["14.15", "16.15", "18.7"]
     steps:
       - uses: "actions/checkout@v2"
       - name: "Use Node.js"

.node-version

@@ -1 +1 @@
-12.20.0
+16.15.1

README.md

@@ -124,8 +124,8 @@ some rules for some reason.
 ## Quick Start
 ### Requirements
 - npm or Yarn
-- Node.js 10.0.0 or higher
-- Next.js 8.0.0 or higher
+- Node.js 14.15.0 or higher
+- Next.js 10.0.0 or higher
 
 ### Installation
 ```bash