* Update gocql version to v1.16.1
1. Update gocql to v1.16.1
2. Update golang to 1.25, since new gocql version requres it
* Update golangci to 2.5.0
It is needed since 1.64.8 does not support golang 1.25.
1. Update golangci to 2.5.0
2. Migrate from golangci config v1 to v2
3. Integrate fieldaligment to golangci
4. Drop fieldaligment from Makefile
5. Address complaints
- Replace log.Faltal with error wrapping in schemagen func
- Simplify tests, use temp dir and ioutil functions, remove boilerplate code
- In test use schemagen keyspace to avoid name conflict with examples
- Change template
