mimalloc: add version 2.1.7, 1.8.7, remove older versions

[toge]

Specify library name and version: mimalloc/*

microsoft/mimalloc@v2.1.2...v2.1.7
microsoft/mimalloc@v1.8.2...v1.8.7

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• I've read the contributing guidelines.
• I've used a recent Conan client version close to the currently deployed.
• I've tried at least one configuration locally with the conan-center hook activated.

[conan-center-bot]

Conan v1 pipeline ✔️

All green in build 7 (af337d6bb6dba157862aae759dc389b2dd7dd9a0):

• mimalloc/2.1.7:
  All packages built successfully! (All logs)

• mimalloc/2.0.9:
  All packages built successfully! (All logs)

• mimalloc/2.1.2:
  All packages built successfully! (All logs)

• mimalloc/1.8.7:
  All packages built successfully! (All logs)

• mimalloc/1.7.9:
  All packages built successfully! (All logs)

• mimalloc/1.7.6:
  All packages built successfully! (All logs)

• mimalloc/1.8.2:
  All packages built successfully! (All logs)

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Conan v2 pipeline ✔️

Note: Conan v2 builds are now mandatory. Please read our discussion about it.

All green in build 7 (af337d6bb6dba157862aae759dc389b2dd7dd9a0):

• mimalloc/2.1.2:
  All packages built successfully! (All logs)

• mimalloc/2.1.7:
  All packages built successfully! (All logs)

• mimalloc/2.0.9:
  All packages built successfully! (All logs)

• mimalloc/1.8.2:
  All packages built successfully! (All logs)

• mimalloc/1.8.7:
  All packages built successfully! (All logs)

• mimalloc/1.7.6:
  All packages built successfully! (All logs)

• mimalloc/1.7.9:
  All packages built successfully! (All logs)

[AbrilRBS]

I'll check if we cant get this working while enabling the redirect thingy in Windows, feel like it should! (Any helpful insight you had while debugging?)

[AbrilRBS]

Sorry for the delay, thanks a lot! :)

[perseoGI]

Thanks for the clean up Toge!