[VE] Fix #206 by rebuilding ffmpeg with libgcc_s_seh-1.dll static linked

[Lusiocc]

Description

Rebuild ffmpeg with libgcc_s_seh-1.dll also static linked.

Motivation and Context

Issue #206

How Has This Been Tested?

Tested ingame + looked at loading deps:
Microsoft (R) COFF/PE Dumper Version 14.42.34436.0
Copyright (C) Microsoft Corporation. All rights reserved.

Dump of file ffmpeg.exe

File Type: EXECUTABLE IMAGE

Image has the following dependencies:

ADVAPI32.dll
CRYPT32.dll
KERNEL32.dll
msvcrt.dll
ncrypt.dll
ole32.dll
Secur32.dll
SHELL32.dll
USER32.dll
WS2_32.dll

All of these are system dlls which are on every windows install.

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)