Fix Github Actions

This commit fixes Github Actions by:

* Updating Node version from 12 to 14.

* Updating GHA runner images from Ubuntu 18.04 to 20.04.

* Moving from `manylinux_2_24_x86_64` container image to
  `node:14-buster`.

* Updating C++ version used by MacOS compilation to 17.

.github/workflows/prebuild.yml

@@ -9,7 +9,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v2
         with:
-          node-version: 12
+          node-version: 14
       - run: npm install
       - run: npm test
       - run: npm run prebuild
@@ -25,15 +25,16 @@ jobs:
           files: prebuild-darwin.tar
   build-linux:
     if: startsWith(github.ref, 'refs/tags/')
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     container: quay.io/pypa/manylinux2014_x86_64
     steps:
       - run: ldd --version ldd
       - uses: actions/checkout@v2
       - name: Setup node
         uses: actions/setup-node@v2
         with:
-          node-version: 12
+          node-version: 14
+      - run: yum install -y python3
       - run: npm install
       - run: npm run prebuild
       - run: npm test
@@ -44,8 +45,8 @@ jobs:
         with:
           files: prebuild-linux.tar
   build-alpine:
-    runs-on: ubuntu-18.04
-    container: node:12.22-alpine
+    runs-on: ubuntu-20.04
+    container: node:14.21-alpine
     steps:
       - run: apk add python3 py3-pip build-base
       - uses: actions/checkout@v2
@@ -60,8 +61,8 @@ jobs:
           files: prebuild-alpine.tar
   build-linux-arm64:
     if: startsWith(github.ref, 'refs/tags/')
-    runs-on: ubuntu-18.04
-    container: quay.io/pypa/manylinux_2_24_x86_64
+    runs-on: ubuntu-20.04
+    container: node:14-buster
     steps:
       - run: apt-get update
       - run: apt-get install -y gcc-aarch64-linux-gnu
@@ -71,7 +72,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v2
         with:
-          node-version: 12
+          node-version: 14
       - run: npm install
       - run: npm run prebuild-arm64
         if: startsWith(github.ref, 'refs/tags/')

binding.gyp

@@ -57,9 +57,9 @@
             }]
           ],
           "xcode_settings": {
-            "OTHER_CPLUSPLUSFLAGS" : ["-std=c++14"],
+            "OTHER_CPLUSPLUSFLAGS" : ["-std=c++17"],
             "MACOSX_DEPLOYMENT_TARGET": "10.7",
-            "OTHER_LDFLAGS": ["-std=c++14"],
+            "OTHER_LDFLAGS": ["-std=c++17"],
             "CLANG_CXX_LIBRARY": "libc++"
           }
         }],