pgsql: Update time zone data files to tzdata release 2009l: DST law

Log Message:
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Update time zone data files to tzdata release 2009l: DST law changes in
Egypt, Mauritius, Bangladesh.

Tags:
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REL8_3_STABLE

Modified Files:
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    pgsql/src/timezone/data:
        africa (r1.7.2.5 -> r1.7.2.6)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/africa?r1=1.7.2.5&r2=1.7.2.6)
        asia (r1.10.2.6 -> r1.10.2.7)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/asia?r1=1.10.2.6&r2=1.10.2.7)
        australasia (r1.6.2.2 -> r1.6.2.3)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/australasia?r1=1.6.2.2&r2=1.6.2.3)
        europe (r1.9.2.3 -> r1.9.2.4)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/europe?r1=1.9.2.3&r2=1.9.2.4)
        leapseconds (r1.7.2.4 -> r1.7.2.5)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/leapseconds?r1=1.7.2.4&r2=1.7.2.5)