fix: amd64 arch to X64 (#2580) (#819)

(cherry picked from commit c671295aab9192b49e4acc981e9c5b2c1d567884)

Refs https://github.com/nektos/act/pull/2580/files

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- bug fixes
  - [PR](https://code.forgejo.org/forgejo/runner/pulls/819): <!--number 819 --><!--line 0 --><!--description Zml4OiBhbWQ2NCBhcmNoIHRvIFg2NCAoIzI1ODAp-->fix: amd64 arch to X64 (#2580)<!--description-->
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Co-authored-by: derrik <[email protected]>
Reviewed-on: https://code.forgejo.org/forgejo/runner/pulls/819
Reviewed-by: Michael Kriese <[email protected]>

Author: earl-warren

act/container/host_environment.go

@@ -462,6 +462,7 @@ func (*HostEnvironment) JoinPathVariable(paths ...string) string {
 // https://docs.github.com/en/actions/learn-github-actions/contexts#runner-context
 func goArchToActionArch(arch string) string {
 	archMapper := map[string]string{
+		"amd64":   "X64",
 		"x86_64":  "X64",
 		"386":     "X86",
 		"aarch64": "ARM64",