Bump Cronos from 0.7.1 to 0.8.4 in /backend/PoudriereC2

[dependabot]

Bumps Cronos from 0.7.1 to 0.8.4.

Release notes

Sourced from Cronos's releases.

0.8.4

Release Notes

• Project – Add an icon for the NuGet package.

0.8.3

Release Notes

• Project – Sign NuGet package and assemblies with a company certificate and add HangfireIO owner.
• Project – Enable required signature validation mode when restoring packages.
• Project – Migrate to the Hangfire.Build system to be consistent with other projects.

0.8.2

Release Notes

• Changed – Disable deterministic source paths for source link to work better when merged using ILRepack.

0.8.1

Release Notes

• Project – Don't embed full source code into assemblies to reduce package size by ~50%.

0.8.0

Release Notes

• Added – Make common cron expressions like CronExpression.Hourly publicly accessible.
• Added – Add the CronExpression.TryParse method to allow checking cron expressions.
• Changed – MaxYear constant is now bumped to 2499, so we have more years now (by @​FaithfulDev).
• Changed – Throw an exception when date exceeds the MaxYear value (by @​FaithfulDev).
• Fixed – Consider TimeZoneInfo.BaseUtcOffset is a subject to change between years.
• Fixed – Don't include seconds in the ToString method's result when they weren't passed.
• Project – Modernize everything, include testing against the net6.0 target.
• Project – Project files have been updated to enable SourceLink with embedded symbols.
• Project – Enable static analysis via the Microsoft.CodeAnalysis.NetAnalyzers package.

Commits

• 4f8bcd7 Bump Hangfire.Build to version 0.4.2
• 5b74ec9 Add icon for the NuGet package
• f04ba3d Bump version to 0.8.4
• 45bd25b Revert "Rename appveyor.yml to .appveyor.yml"
• 9d6e349 Bump version to 0.8.3
• 8bfdd73 Rename appveyor.yml to .appveyor.yml
• 91048d4 Delete dotnet-tools.json
• 6f653d7 Update psake-project.ps1
• 61c1b1e Sign build artifacts with authenticode
• 8637ea0 Enable required package signature validation mode
• Additional commits viewable in compare view

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