Upgrade macos tests to latest (#8162)

Author: dmathieu

.github/workflows/ci.yml

@@ -108,7 +108,7 @@ jobs:
             arch: "386"
           - os: ubuntu-latest
             arch: amd64
-          - os: macos-13
+          - os: macos-latest
             arch: amd64
           - os: macos-latest
             arch: arm64

README.md

@@ -56,8 +56,8 @@ This project is tested on the following systems.
 | Ubuntu   | 1.24       | amd64        |
 | Ubuntu   | 1.25       | 386          |
 | Ubuntu   | 1.24       | 386          |
-| macOS 13 | 1.25       | amd64        |
-| macOS 13 | 1.24       | amd64        |
+| macOS    | 1.25       | amd64        |
+| macOS    | 1.24       | amd64        |
 | macOS    | 1.25       | arm64        |
 | macOS    | 1.24       | arm64        |
 | Windows  | 1.25       | amd64        |