Bump cache minor version to 2 to trigger rebuilds

With the package names now normalized to lower case, the caches
of affected systems need to be rebuild. Adjust the minor version
to trigger such a rebuild.

Gbp-Dch: ignore

apt-pkg/pkgcache.cc

@@ -57,7 +57,7 @@ pkgCache::Header::Header()
    /* Whenever the structures change the major version should be bumped,
       whenever the generator changes the minor version should be bumped. */
    APT_HEADER_SET(MajorVersion, 10);
-   APT_HEADER_SET(MinorVersion, 1);
+   APT_HEADER_SET(MinorVersion, 2);
    APT_HEADER_SET(Dirty, false);
 
    APT_HEADER_SET(HeaderSz, sizeof(pkgCache::Header));