sentry-crashpad/0.2.6: Invalidate armv8 arch

[MartinDelille]

Specify library name and version: sentry-crashpad/0.2.6

#7274 (comment) is failing because of missing binaries for sentry-crashpad/0.2.6 with armv8 arch. Since it doesn't seems to build, I invalidate this arch for macos.

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• I've followed the PEP8 style guides for Python code in the recipes.
• I've used the latest Conan client version.
• I've tried at least one configuration locally with the
  conan-center hook activated.

[ghost]

I detected other pull requests that are modifying sentry-crashpad/all recipe:

• Updates sentry crashpad ssl dep to 1.1.1l #7226

This message is automatically generated by https://github.com/ericLemanissier/conan-center-conflicting-prs so don't hesitate to report issues/improvements there.

[conan-center-bot]

All green in build 3 (6fcf7e18182657c868b0b84d7e49a89e721fb752):

• sentry-crashpad/0.4.12@:
  All packages built successfully! (All logs)

• sentry-crashpad/0.4.11@:
  All packages built successfully! (All logs)

• sentry-crashpad/0.4.10@:
  All packages built successfully! (All logs)

• sentry-crashpad/0.4.9@:
  All packages built successfully! (All logs)

• sentry-crashpad/0.4.7@:
  All packages built successfully! (All logs)

• sentry-crashpad/0.4.8@:
  All packages built successfully! (All logs)

• sentry-crashpad/0.4.1@:
  All packages built successfully! (All logs)

• sentry-crashpad/0.2.6@:
  All packages built successfully! (All logs)