Format files and add try-runtime feature for maintenance pallet

[Chralt98]

I always find it better readable to split the std, benchmark and try-runtime features into multiple lines.

So I run taplo fmt on all Cargo.toml files. (In specific terms I used the Even Better TOML extension of VSCode.)

I also did run cargo +nightly clippy --all-features --all-targets -p container-chain-template-simple-runtime and found out that the maintenance pallet also has to enable the try-runtime feature.

Additionally I run cargo +nightly fmt to properly format mainly the imports.

[tmpolaczyk]

Hi, sorry for no reply. We have improved our CI with new toml linters, zepter to ensure that the features are correctly propagated, and toml maid as an alternative to taplo:

#368
#369

This is because manually keeping track of the features was very error prone, as you have noticed, so we have automated it. You shouldn't run into similar issues in the future, but if you do, feel free to open a pull request!