build(deps): bump Externals/sse2neon from `efcbd51` to `0e8df5c`

Created by: dependabot[bot]

Bumps Externals/sse2neon from efcbd51 to 0e8df5c.

Commits

• 0e8df5c Mention BitMagic as a new adoption case
• c72454b CI: Bump dependency versions
• 7f011b1 CI: Support GNU Toolchain release 10.3-2021.07
• c1d3773 Fix preprocessor checks and static const correctness (#503)
• 246cf48 Mention sse2msa
• dc4fb61 Mention IResearch as a new adoption case
• dffa3f8 feat: Implement _mm_stream_si64 (#398)
• f7b4ad5 Add parentheses around imm in some macros (#501)
• ae61222 Trivial format tweaks
• 1df9e53 Mention Olive as a new adoption case
• Additional commits viewable in compare view

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