chore(deps): update dependency upx/upx to v4.2.1

[renovate]

This PR contains the following updates:

Package	Update	Change
upx/upx	patch	4.2.0 -> 4.2.1

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Release Notes

upx/upx (upx/upx)

v4.2.1: UPX 4.2.1

Compare Source

Please see the file NEWS for a detailed list of changes.

Note: all versions are functionally equivalent, i.e. each version can handle all executable formats, so you only need the file that runs on your host OS.

Security/VirusTotal links are listed in the pinned issue https://github.com/upx/upx/issues/437

Asset / File	Description / Host OS
upx-4.2.1-amd64_linux.tar.xz	UPX - Linux version
upx-4.2.1-arm64_linux.tar.xz	UPX - Linux version
upx-4.2.1-armeb_linux.tar.xz	UPX - Linux version
upx-4.2.1-arm_linux.tar.xz	UPX - Linux version
upx-4.2.1-dos.zip	UPX - DOS version
upx-4.2.1-i386_linux.tar.xz	UPX - Linux version
upx-4.2.1-mipsel_linux.tar.xz	UPX - Linux version
upx-4.2.1-mips_linux.tar.xz	UPX - Linux version
upx-4.2.1-powerpc64le_linux.tar.xz	UPX - Linux version
upx-4.2.1-powerpc_linux.tar.xz	UPX - Linux version
upx-4.2.1-src.tar.xz	UPX - source code tarball
upx-4.2.1-win32.zip	UPX - X86 Win32 version
upx-4.2.1-win64.zip	UPX - X64 Win64 version

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Configuration

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♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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