Fix some issues reported by lintian

Fix some issues reported by lintian

• Remove unnecessary X-Python{,3}-Version field in debian/control. (ancient-python-version-field)

• Bump debhelper from deprecated 9 to 13. (package-uses-deprecated-debhelper-compat-version)

• Set debhelper-compat version in Build-Depends. (uses-debhelper-compat-file)

• Drop unnecessary dependency on dh-autoreconf. (useless-autoreconf-build-depends)

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Build and test logs for this branch can be found at https://janitor.debian.net/lintian-fixes/pkg/mklibs/e4a321f8-4dd8-4d82-9ce5-8e5b6d836a42.

Debdiff

These changes affect the binary packages:

[The following lists of changes regard files as different if they have different names, permissions or owners.]

Files in second set of .debs but not in first

-rw-r--r--  root/root   /usr/lib/debug/.build-id/a2/a1ee1d9746c4ecdce728f20a333aa88be0039a.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/ac/27f23403e0258c173158fe03fb2e59aec75d05.debug

No differences were encountered between the control files of package **mklibs**

No differences were encountered between the control files of package **mklibs-copy**

Control files of package mklibs-copy-dbgsym: lines which differ (wdiff format)

• Build-Ids: ac27f23403e0258c173158fe03fb2e59aec75d05 a2a1ee1d9746c4ecdce728f20a333aa88be0039a

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