chore(deps): update mcr.microsoft.com/dotnet/sdk docker tag to v7

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
mcr.microsoft.com/dotnet/sdk	final	major	6.0 -> 7.0
mcr.microsoft.com/dotnet/sdk	docker	major	6.0 -> 7.0

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[ChrisMcKee]

@sbellone I'd just close this one; 7s a preview sdk; so this is just renovate making noise

[sbellone]

Indeed, but it will becomes valid when 7.0 becomes GA :)

[ChrisMcKee]

Indeed, but it will becomes valid when 7.0 becomes GA :)

Not pinning against LTS then 😜