[shell-operator] Replace Logrus with slog

[ldmonster]

Overview

Replace Logrus to Slog implementation

What this PR does / why we need it

We can freely remove Logrus. That's the point!

Special notes for your reviewer

For testing purpose deckhouse/deckhouse#10209

[libmonsoon-dev]

I propose to define an interface at the shell-operator level (currently it is here https://github.com/flant/addon-operator/blob/main/pkg/utils/logger/logger.go) but with the following changes:

1. mark all *f and *ln methods as deprecated. *ln because Println in the logger does nothing different from Print and simply inflates the interface for no reason, and *f methods should not be called in the structured logger, all arguments should be passed as slog.Attr. (or key-value pairs, but we are not using this now, see below). Otherwise, we will have a situation like now, when all non-primitive types are first converted to a string by the fmt package, and then also encoded with json, the consequences of which we see every day on environments.

2. Considering that slog.Info perceives arguments as key-value pairs, we cannot use it directly in this interface, so at this stage I propose to create only With, WithGroup, FatalAttrs, PanicAttrs, DebugAttrs, ErrorAttrs, InfoAttrs, WarnAttrs, leaving the slog.Logger methods that accept key-value pairs in the form of []any until better times.

[ldmonster]

I propose to define an interface at the shell-operator level (currently it is here https://github.com/flant/addon-operator/blob/main/pkg/utils/logger/logger.go) but with the following changes:

1. mark all *f and *ln methods as deprecated. *ln because Println in the logger does nothing different from Print and simply inflates the interface for no reason, and *f methods should not be called in the structured logger, all arguments should be passed as slog.Attr. (or key-value pairs, but we are not using this now, see below). Otherwise, we will have a situation like now, when all non-primitive types are first converted to a string by the fmt package, and then also encoded with json, the consequences of which we see every day on environments.
2. Considering that slog.Info perceives arguments as key-value pairs, we cannot use it directly in this interface, so at this stage I propose to create only With, WithGroup, FatalAttrs, PanicAttrs, DebugAttrs, ErrorAttrs, InfoAttrs, WarnAttrs, leaving the slog.Logger methods that accept key-value pairs in the form of []any until better times.

1. I did not find *ln methods. About marking *f methods - good. I made it. Global logger must be deprecated at all, so i mark it in head of package. About slog.Attrs. We block one way of using attrs after with linter.
2. No reason, if we have a linter.

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