Update Rust crate rustls to 0.23.26

[oxide-renovate]

This PR contains the following updates:

Package	Type	Update	Change
rustls	workspace.dependencies	minor	0.22.2 -> 0.23.26

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Configuration

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This PR has been generated by Renovate Bot.

[oxide-renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path Cargo.toml --package [email protected] --precise 0.23.26
    Updating crates.io index
error: failed to select a version for the requirement `rustls = "^0.22.4"`
candidate versions found which didn't match: 0.23.26
location searched: crates.io index
required by package `dropshot v0.16.0`
    ... which satisfies dependency `dropshot = "^0.16.0"` (locked to 0.16.0) of package `oximeter-instruments v0.1.0 (/tmp/renovate/repos/github/oxidecomputer/omicron/oximeter/instruments)`
    ... which satisfies path dependency `oximeter-instruments` (locked to 0.1.0) of package `omicron-gateway v0.1.0 (/tmp/renovate/repos/github/oxidecomputer/omicron/gateway)`
    ... which satisfies path dependency `omicron-gateway` (locked to 0.1.0) of package `gateway-test-utils v0.1.0 (/tmp/renovate/repos/github/oxidecomputer/omicron/gateway-test-utils)`
    ... which satisfies path dependency `gateway-test-utils` (locked to 0.1.0) of package `nexus-test-utils v0.1.0 (/tmp/renovate/repos/github/oxidecomputer/omicron/nexus/test-utils)`
    ... which satisfies path dependency `nexus-test-utils` (locked to 0.1.0) of package `omicron-cockroach-admin v0.1.0 (/tmp/renovate/repos/github/oxidecomputer/omicron/cockroach-admin)`