chore: update last LTS nodejs version (16)

.github/workflows/build.yml

@@ -20,7 +20,7 @@ jobs:
       # We use a matrix even if it's not needed here to be able to re-use the same Yarn setup snippet everywhere
       matrix:
         os: [ubuntu-latest]
-        node-version: [14.x]
+        node-version: [16.x] # Active LTS (https://github.com/nodejs/release)
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
@@ -69,16 +69,19 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        node-version: [15.x, 14.x, 12.x]
+        node-version:
+          - 18.x # Current version
+          - 16.x # Active LTS (https://github.com/nodejs/release)
+          - 14.x # Maintenance LTS
         exclude: # these cases are tested after the release with E2E tests
           - os: windows-latest
-            node-version: 15.x
+            node-version: 18.x
           - os: windows-latest
-            node-version: 12.x
+            node-version: 14.x
           - os: macos-latest
-            node-version: 15.x
+            node-version: 18.x
           - os: macos-latest
-            node-version: 12.x
+            node-version: 14.x
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
@@ -136,7 +139,7 @@ jobs:
       # We use a matrix even if it's not needed here to be able to re-use the same Yarn setup snippet everywhere
       matrix:
         os: [ubuntu-latest]
-        node-version: [14.x]
+        node-version: [16.x] # Active LTS (https://github.com/nodejs/release)
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
       # We use a matrix even if it's not needed here to be able to re-use the same Yarn setup snippet everywhere
       matrix:
         os: [ubuntu-latest]
-        node-version: [14.x]
+        node-version: [16.x] # Active LTS (https://github.com/nodejs/release)
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
@@ -73,7 +73,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        node-version: [14.x] # we test 15.x and 12.x in master build, because it's too slow
+        node-version: [16.x] # Active LTS (https://github.com/nodejs/release); we test other versions in the main Build workflow because it's too slow
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2

.github/workflows/post-release-e2e.yml

@@ -17,7 +17,10 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        node-version: [15.x, 14.x, 12.x]
+        node-version:
+          - 18.x # Current version
+          - 16.x # Active LTS (https://github.com/nodejs/release)
+          - 14.x # Maintenance LTS
     runs-on: ${{ matrix.os }}
     steps:
       - name: use node.js ${{ matrix.node-version }}

.nvmrc

@@ -0,0 +1 @@
+16