Fix install for callgrind runner docker image

[kazimuth]

Description of Changes

It seems the cargo solver has chosen a crate that doesn't compile with the rustc version in our docker image. This image is only used for benchmarks, so rather than trying to change our iai-callgrind-runner fork, I'm just updating the rustc version in the image.

API and ABI breaking changes

None

Expected complexity level and risk

0

Testing

Going to run the updated actions yml on this branch to see if it works

[github-actions]

Criterion benchmark results

Error when comparing benchmarks: Couldn't find AWS credentials in environment, credentials file, or IAM role.

Caused by:
Couldn't find AWS credentials in environment, credentials file, or IAM role.

[github-actions]

Callgrind benchmark results

Error when comparing benchmarks: Couldn't find AWS credentials in environment, credentials file, or IAM role.

Caused by:
Couldn't find AWS credentials in environment, credentials file, or IAM role.

[kazimuth]

Hmm, the runner is now working. That error is actually an error in the benchmarks comparison application. I'll go poke at that.

[RReverser]

Maybe now it's down to that regex update that you mentioned will be necessary after C# benchmarks are merged? Ah no, I see it's something else entirely.

[github-actions]

Criterion benchmark results

Error when comparing benchmarks: Couldn't find AWS credentials in environment, credentials file, or IAM role.

Caused by:
Couldn't find AWS credentials in environment, credentials file, or IAM role.

[github-actions]

Callgrind benchmark results

Error when comparing benchmarks: Couldn't find AWS credentials in environment, credentials file, or IAM role.

Caused by:
Couldn't find AWS credentials in environment, credentials file, or IAM role.