## Changes
If not explicitly quoted, the YAML loader interprets a value like
`2024-08-29` as a timestamp. Such a value is usually intended to be a
string instead. Our normalization logic was not able to turn a time
value back into the original string.
This change boxes the time value to include its original string
representation. Normalization of one of these values into a string can
now use the original input value.
## Tests
Unit tests in `libs/dyn/convert`.
Pieter Noordhuis