ARROW-11475: [C++] Upgrade mimalloc to v1.7.3

[pitrou]

No description provided.

[pitrou]

@github-actions crossbow submit -g cpp

[github-actions]

https://issues.apache.org/jira/browse/ARROW-11475

[github-actions]

Revision: 9de9a69

Submitted crossbow builds: ursacomputing/crossbow @ actions-1331

Task	Status
test-build-cpp-fuzz
test-conda-cpp
test-conda-cpp-valgrind
test-debian-10-cpp-amd64
test-debian-10-cpp-i386
test-debian-11-cpp-amd64
test-debian-11-cpp-i386
test-fedora-33-cpp
test-ubuntu-18.04-cpp
test-ubuntu-18.04-cpp-release
test-ubuntu-18.04-cpp-static
test-ubuntu-20.04-cpp
test-ubuntu-20.04-cpp-14
test-ubuntu-20.04-cpp-17
test-ubuntu-20.04-cpp-bundled
test-ubuntu-20.04-cpp-thread-sanitizer

[kou]

@github-actions crossbow submit -g linux

[github-actions]

Revision: 9de9a69

Submitted crossbow builds: ursacomputing/crossbow @ actions-1342

Task	Status
almalinux-8-amd64
almalinux-8-arm64
amazon-linux-2-amd64
centos-7-amd64
debian-bookworm-amd64
debian-bookworm-arm64
debian-bullseye-amd64
debian-bullseye-arm64
debian-buster-amd64
debian-buster-arm64
ubuntu-bionic-amd64
ubuntu-bionic-arm64
ubuntu-focal-amd64
ubuntu-focal-arm64
ubuntu-hirsute-amd64
ubuntu-hirsute-arm64
ubuntu-impish-amd64
ubuntu-impish-arm64

[pitrou]

The link on the Travis-CI buttons generated by Crossbow is wrong, it should be https://app.travis-ci.com/github/ursacomputing/crossbow/branches (@kszucs )

[kou]

+1

[ursabot]

Benchmark runs are scheduled for baseline = aa98e3e and contender = 4c00f11. 4c00f11 is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Finished ⬇️0.0% ⬆️0.0%] ec2-t3-xlarge-us-east-2
[Failed ⬇️1.35% ⬆️0.0%] ursa-i9-9960x
[Failed ⬇️0.0% ⬆️0.04%] ursa-thinkcentre-m75q
Supported benchmarks:
ec2-t3-xlarge-us-east-2: Supported benchmark langs: Python. Runs only benchmarks with cloud = True
ursa-i9-9960x: Supported benchmark langs: Python, R, JavaScript
ursa-thinkcentre-m75q: Supported benchmark langs: C++, Java