chore(ci): remove macOS x86_64 build

ARM64 binary works on Intel Macs via Rosetta 2.

Author: oae

.github/workflows/release.yml

@@ -40,10 +40,6 @@ jobs:
             goos: linux
             goarch: arm64
             suffix: ""
-          - os: macos-15-intel
-            goos: darwin
-            goarch: amd64
-            suffix: ""
           - os: macos-latest
             goos: darwin
             goarch: arm64