Stop wasting time in CI on MIRI runs

[alamb]

Which issue does this PR close?

re #3045

Rationale for this change

DataFusion runs a check called "MIRI" as part of CI. Example: https://github.com/apache/arrow-datafusion/actions/runs/3119021327/jobs/5058711471

This check always completes successfully as the results of running miri are || true d (aka ignored)

This provides a false sense of security (we run MIRI!) as well as wasting CI resources

What changes are included in this PR?

Stop running MIRI check in CI

Are there any user-facing changes?

No

Follow on ticket to create a working MIRI CI check: #3611

[codecov-commenter]

Codecov Report

Merging #3610 (00e3ac6) into master (ebb28f5) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3610   +/-   ##
=======================================
  Coverage   86.07%   86.07%           
=======================================
  Files         300      300           
  Lines       56314    56314           
=======================================
+ Hits        48473    48475    +2     
+ Misses       7841     7839    -2     

Impacted Files	Coverage Δ
datafusion/expr/src/logical_plan/plan.rs	77.26% <0.00%> (+0.16%)	⬆️
datafusion/core/src/physical_plan/metrics/value.rs	87.56% <0.00%> (+0.49%)	⬆️

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[Ted-Jiang]

Thanks! 👍 @alamb i will update in ballista apache/datafusion-ballista#283 (comment)

[ursabot]

Benchmark runs are scheduled for baseline = c8a9ea0 and contender = ced3b27. ced3b27 is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Skipped ⚠️ Benchmarking of arrow-datafusion-commits is not supported on ec2-t3-xlarge-us-east-2] ec2-t3-xlarge-us-east-2
[Skipped ⚠️ Benchmarking of arrow-datafusion-commits is not supported on test-mac-arm] test-mac-arm
[Skipped ⚠️ Benchmarking of arrow-datafusion-commits is not supported on ursa-i9-9960x] ursa-i9-9960x
[Skipped ⚠️ Benchmarking of arrow-datafusion-commits is not supported on ursa-thinkcentre-m75q] ursa-thinkcentre-m75q
Buildkite builds:
Supported benchmarks:
ec2-t3-xlarge-us-east-2: Supported benchmark langs: Python, R. Runs only benchmarks with cloud = True
test-mac-arm: Supported benchmark langs: C++, Python, R
ursa-i9-9960x: Supported benchmark langs: Python, R, JavaScript
ursa-thinkcentre-m75q: Supported benchmark langs: C++, Java