[IR,TE,TIR] Use f-strings for string formatting, NFC

[kparzysz-quic]

Replace uses of % and .format() with f-strings.

Reformat modified files.

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• cc @Hzfengsy, @junrushao, @quic-sanirudh, @shingjan _{See #10317 for details}

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[Hzfengsy]

LGTM. Thanks for the work, but I'm curious about the reason behind these changes. Does it mean string formatting will be deprecated in the future by Python?

[kparzysz-quic]

F-strings embed the expressions into the string itself, unlike % and format, which separate them from the string. This typically makes f-strings more compact and easier to read. This can be a judgment call sometimes and I tried not to sacrifice readability if the existing code was clearer than f-strings.

Maybe a small bonus for moving away from % is that % uses different format specification from format and f-strings. The latter two use the same one, so that helps with consistency a little bit.

I created the first PR not knowing how it will be received, but since the reception was positive, I decided to keep going.

[kparzysz-quic]

Forgot to mention---I am not aware of any intentions to deprecate % from python. As far as I know it's here to stay.