Use deploy --out instead of stdout

[chgeo]

The new param cds deploy --out <file> allows writing DDL statements to a separate file.

This is needed by CAP Java to replace their stdout redirection (cds deploy --dry > schema.sql). That one fails if debug traces are on as these mess up the output.

So,

cds deploy --to h2 --dry > schema.sql

can change to

cds deploy --to h2 --dry --out schema.sql

Also, one can now request the log independently of the dry mode to get an additional log:

cds deploy --to h2 --out schema.sql

[chgeo]

@mofterdinger can you review this one?

[chgeo]

BTW: we have also added a check in cds deploy that will error if the sap/cds version is too old to understand --out (versions < 8.3.0). This way we detect mismatches between @sap/cds-dk and @sap/cds versions.