Postgres 17 support

[aak74]

• #define ParallelLeaderProcNumber extracted from condition.
• added package to control
• updated dependencies

[rjuju]

Hi,

Thanks for the PR. For the debian/ changes, at least the debian/control changes shouldn't be required. I'm not sure if the Build-depends is also really needed.

The ParallelLeaderProcNumber seems faulty? I just compiled the latest pg17 version and I get:

pg_stat_kcache.c: In function ‘pgsk_ExecutorEnd’:
pg_stat_kcache.c:101:34: error: ‘ParallelLeaderBackendId’ undeclared (first use in this function)
  101 | #define ParallelLeaderProcNumber ParallelLeaderBackendId
      |                                  ^~~~~~~~~~~~~~~~~~~~~~~
pg_stat_kcache.c:1091:50: note: in expansion of macro ‘ParallelLeaderProcNumber’
 1091 |                         queryId = pgsk->queryids[ParallelLeaderProcNumber];
      |                                                  ^~~~~~~~~~~~~~~~~~~~~~~~
pg_stat_kcache.c:101:34: note: each undeclared identifier is reported only once for each function it appears in
  101 | #define ParallelLeaderProcNumber ParallelLeaderBackendId
      |                                  ^~~~~~~~~~~~~~~~~~~~~~~
pg_stat_kcache.c:1091:50: note: in expansion of macro ‘ParallelLeaderProcNumber’
 1091 |                         queryId = pgsk->queryids[ParallelLeaderProcNumber];

The current code however compiles just fine and the regression tests also pass.

[aak74]

Sorry for disturb.
I had used the wrong version of Postgres. The PR needs to be discarded.