Build all Database and Source drivers by default

[yshngg]

Support the new Go 1.24 feature: using go tool to track tool dependencies.

Current:

$ go tool github.com/golang-migrate/migrate/v4/cmd/migrate
Usage: migrate OPTIONS COMMAND [arg...]
       migrate [ -version | -help ]
...
Source drivers: file
Database drivers: stub

Expected:

$ go tool github.com/golang-migrate/migrate/v4/cmd/migrate
Usage: migrate OPTIONS COMMAND [arg...]
       migrate [ -version | -help ]
...
Source drivers: go-bindata, github-ee, gitlab, bitbucket, s3, gcs, file, github, godoc-vfs
Database drivers: cockroach, redshift, cockroachdb, yugabytedb, firebird, firebirdsql, mysql, cassandra, rqlite, spanner, mongodb, snowflake, stub, postgresql, yugabyte, clickhouse, sqlite, ysql, neo4j, sqlserver, mongodb+srv, ql, sqlcipher, sqlite3, pgx, postgres, pgx5, crdb-postgres, pgx4
exit status 2

Go 1.24 Release Notes

Fix #1232

[coveralls]

coverage: 56.319%. remained the same
when pulling b410679 on yshngg:feature/build-constraints
into 604248c on golang-migrate:master.

[dhui]

See #1232 (comment)

[dhui]

I'm curious why this was needed

[yshngg]

Copied from build_clickhouse.go.

migrate/internal/cli/build_clickhouse.go

Lines 5 to 8 in 9023d66

	import (
	_ "github.com/ClickHouse/clickhouse-go"
	_ "github.com/golang-migrate/migrate/v4/database/clickhouse"
	)