Drop support for node <12 (#511)

Co-authored-by: Misha Kaletsky <mmkal@users.noreply.github.com>

.github/workflows/ci.yml

@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x, 10.x]
+        node-version: [14.x, 12.x]
         sequelize-version: [null, latest]
     steps:
     - uses: actions/checkout@v2
@@ -22,4 +22,4 @@ jobs:
     - run: npm run test -- --coverage
     - name: Coverage
       uses: codecov/codecov-action@v1
-      if: matrix.node-version == '12.x' && matrix.sequelize-version == null
+      if: matrix.node-version == '14.x' && matrix.sequelize-version == null

package.json

@@ -89,7 +89,7 @@
 	},
 	"homepage": "https://github.com/sequelize/umzug",
 	"engines": {
-		"node": ">=10.0.0"
+		"node": ">=12"
 	},
 	"jest": {
 		"preset": "ts-jest",