fix(debug): ensure reproducible builds in debug mode

When use `--debug` build flag, a new dlv executable file is built into the image.
However, during the build, some build flags are not specified, resulting in
the binary being different each time, which ultimately causes the digest of
the image to be inconsistent.

This change aims to ensure that, as long as the remote dlv code has not been
updated, the digest remains consistent with each build.

pkg/build/gobuild.go

@@ -331,6 +331,8 @@ func getDelve(ctx context.Context, platform v1.Platform) (string, error) {
 	// install delve to tmp directory
 	args := []string{
 		"build",
+		"-trimpath",
+		"-ldflags=-s -w",
 		"-o",
 		delveBinaryPath,
 		"./cmd/dlv",