Auto merge of #6304 - rust-lang:dependabot/cargo/env_logger-0.6.0, r=alexcrichton
Auto merge of #6304 - rust-lang:dependabot/cargo/env_logger-0.6.0, r=alexcrichton

Update env_logger requirement from 0.5.11 to 0.6.0

Updates the requirements on [env_logger](https://github.com/sebasmagri/env_logger) to permit the latest version.
<details>
<summary>Release notes</summary>

*Sourced from [env_logger's releases](https://github.com/sebasmagri/env_logger/releases).*

> ## 0.6.0
> # Key Changes
>
> - Set a policy for changes to the default format
> - Make all dependencies besides `log` optional (but enabled by default)
>
> # Breaking Changes
>
> - The default format is not considered stable across patch versions. The best way to get a stable format for later ripgrepping is to define a custom one.
> - All dependencies have been made optional except for `log`. That means compiling `env_logger` with `default-features=false` will result in a different experience than in `0.5.x`.
>
> # Contributions
>
> - [**hcpl**](https://github.com/hcpl) [Test with `-Z minimal-versions` on CI](https://github-redirect.dependabot.com/sebasmagri/env_logger/pull/114)
> - [**afck**](https://github.com/afck) [Add missing RFC3339 URL to fix rustdoc](https://github-redirect.dependabot.com/sebasmagri/env_logger/pull/105)
> - [Make all dependencies optional](https://github-redirect.dependabot.com/sebasmagri/env_logger/pull/100)
> - [Rework the default format](https://github-redirect.dependabot.com/sebasmagri/env_logger/pull/82)
> - [Don't clobber a previously set level filter](https://github-redirect.dependabot.com/sebasmagri/env_logger/pull/117)
>
> # More Details
>
> ## Disabling dependencies
>
> Using `default-features=false` will disable all dependencies of `env_logger` besides `log`. This will reduce compile times and alter the default format by disabling colours and timestamps.
>
> Disabling default dependencies is the recommended way to use `env_logger` for libraries that only need it for logging in tests.
</details>
<details>
<summary>Commits</summary>

- See full diff in [compare view](https://github.com/sebasmagri/env_logger/commits/v0.6.0)
</details>
<br />

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`.

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot ignore this [patch|minor|major] version` will close this PR and stop Dependabot creating any more for this minor/major version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
- `@dependabot use these labels` will set the current labels as the default for future PRs for this repo and language
- `@dependabot use these reviewers` will set the current reviewers as the default for future PRs for this repo and language
- `@dependabot use these assignees` will set the current assignees as the default for future PRs for this repo and language
- `@dependabot use this milestone` will set the current milestone as the default for future PRs for this repo and language
- `@dependabot badge me` will comment on this PR with code to add a "Dependabot enabled" badge to your readme

Additionally, you can set the following in your Dependabot [dashboard](https://app.dependabot.com):
- Update frequency (including time of day and day of week)
- Automerge options (never/patch/minor, and dev/runtime dependencies)
- Pull request limits (per update run and/or open at any time)
- Out-of-range updates (receive only lockfile updates, if desired)
- Security updates (receive only security updates, if desired)

Finally, you can contact us by mentioning @dependabot.

</details>

nipunn1313/cargo,vojtechkral/cargo,tsurai/cargo,tsurai/cargo,rust-lang/cargo,nipunn1313/cargo,rustyhorde/cargo,rust-lang/cargo,rust-lang/cargo,rust-lang/cargo,rustyhorde/cargo,rustyhorde/cargo,eminence/cargo,tshepang/cargo,eminence/cargo,eminence/cargo,vojtechkral/cargo,vojtechkral/cargo,tsurai/cargo,nipunn1313/cargo,vojtechkral/cargo,nipunn1313/cargo,eminence/cargo,tsurai/cargo,tshepang/cargo,tsurai/cargo,tshepang/cargo,tshepang/cargo,rustyhorde/cargo