Fix <url> in pom.xml

See #13, release log:

• ddf7ed1 by @Suseika: Make constructor public
• 8195a77 by @Suseika: Update rultor decryption profi...
• 8eaf5c0 by @Suseika: Update rultor decryption profi...
• 7e3dcf5 by @Suseika: Update rultor credentials
• 678ae02 by @Suseika: Update secring and pubring
• b2caa65 by @Suseika: Merge pull request #14 from Su...
• cea4f8d by @Suseika: Replace "readonly-collections"...
• 110ab21 by @Suseika: Merge pull request #12 from Su...
• 36210b1 by @Suseika: Put tendiwa-version tags in ja...
• 0e2bce1 by @Suseika: Setup automated version insert...
• ad69211 by @Suseika: Merge pull request #10 from Su...
• 7cd23c7 by @Suseika: Fix resetting mistakes
• f232c2f by @Suseika: Make Wrapping* classes non-fin...
• f75bc9e by @Suseika: Dispose of qulice in build
• 77959d6 by @Suseika: Remove sonatype server from po...
• 145ef52 by @Suseika: Add sonatype server to pom.xml
• a4bb01b by @Suseika: Disable emain notifications in...

Released by Rultor 1.56.2, see build log