build: bump macOS deployment target to 10.15

Update the macOS deployment target for Node.js 18 onwards.

PR-URL: #42292
Refs: nodejs/build#2815
Refs: libuv/libuv#3406
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Mestery <mestery@protonmail.com>
Reviewed-By: Ash Cripps <acripps@redhat.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>

Author: richardlau

BUILDING.md

@@ -113,7 +113,7 @@ platforms. This is true regardless of entries in the table below.
 | Windows          | x86 (native)     | >= Windows 10/Server 2016       | Tier 1 (running) / Experimental (compiling)[^6] |                                           |
 | Windows          | x64, x86         | Windows 8.1/Server 2012         | Experimental                                    |                                           |
 | Windows          | arm64            | >= Windows 10                   | Tier 2 (compiling) / Experimental (running)     |                                           |
-| macOS            | x64              | >= 10.13                        | Tier 1                                          | For notes about compilation see [^7]      |
+| macOS            | x64              | >= 10.15                        | Tier 1                                          | For notes about compilation see [^7]      |
 | macOS            | arm64            | >= 11                           | Tier 1                                          |                                           |
 | SmartOS          | x64              | >= 18                           | Tier 2                                          |                                           |
 | AIX              | ppc64be >=power7 | >= 7.2 TL04                     | Tier 2                                          |                                           |
@@ -151,8 +151,7 @@ platforms. This is true regardless of entries in the table below.
     Furthermore, compiling on x86 Windows is Experimental and
     may not be possible.
 
-[^7]: Our macOS x64 Binaries are compiled with 10.13 as a target.
-    However there is no guarantee compiling on 10.13 will work as Xcode11 is
+[^7]: Our macOS x64 Binaries are compiled with 10.15 as a target. Xcode11 is
     required to compile.
 
 ### Supported toolchains
@@ -172,8 +171,8 @@ Binaries at <https://nodejs.org/download/release/> are produced on:
 | Binary package          | Platform and Toolchain                                                                                        |
 | ----------------------- | ------------------------------------------------------------------------------------------------------------- |
 | aix-ppc64               | AIX 7.2 TL04 on PPC64BE with GCC 8                                                                            |
-| darwin-x64              | macOS 10.15, Xcode Command Line Tools 11 with -mmacosx-version-min=10.13                                      |
-| darwin-arm64 (and .pkg) | macOS 11 (arm64), Xcode Command Line Tools 12 with -mmacosx-version-min=10.13                                 |
+| darwin-x64              | macOS 10.15, Xcode Command Line Tools 11 with -mmacosx-version-min=10.15                                      |
+| darwin-arm64 (and .pkg) | macOS 11 (arm64), Xcode Command Line Tools 12 with -mmacosx-version-min=10.15                                 |
 | linux-arm64             | CentOS 7 with devtoolset-8 / GCC 8[^8]                                                                        |
 | linux-armv7l            | Cross-compiled on Ubuntu 18.04 x64 with [custom GCC toolchain](https://github.com/rvagg/rpi-newer-crosstools) |
 | linux-ppc64le           | CentOS 7 with devtoolset-8 / GCC 8[^8]                                                                        |

common.gypi

@@ -497,7 +497,7 @@
           'GCC_ENABLE_CPP_RTTI': 'NO',              # -fno-rtti
           'GCC_ENABLE_PASCAL_STRINGS': 'NO',        # No -mpascal-strings
           'PREBINDING': 'NO',                       # No -Wl,-prebind
-          'MACOSX_DEPLOYMENT_TARGET': '10.13',      # -mmacosx-version-min=10.13
+          'MACOSX_DEPLOYMENT_TARGET': '10.15',      # -mmacosx-version-min=10.15
           'USE_HEADERMAP': 'NO',
           'OTHER_CFLAGS': [
             '-fno-strict-aliasing',