Inlined format args make code more readable, and code more compact.
I ran this clippy command to fix most cases, and then cleaned up a few trailing commas and uncaught edge cases.
```
cargo clippy --bins --examples --benches --tests --lib --workspace --fix -- -A clippy::all -W clippy::uninlined_format_args
```
SQLite's CURRENT_TIMESTAMP keyword fills a DATETIME column as a UTC expressed
string in the following format: "YYYY-MM-DD HH:MM:SS".
Unfortunately, this format lacks the timezone information to safely build
a time::OffsetDateTime.
If all else fails, this patch will try to build it by assuming the missing
timezine is UTC.
