Upgrade snap dependency.

Dependencies

• [2] HMDM3B55 Implement core of payments/billing infrastructure.
• [3] DFOBMSAO Initial work on payments API
• [4] EW2XN7KU Update docker build, clean up migration for payments tables.
• [5] SEWTRB6S Implement payment request creation functions.
• [*] KEP5WUFJ Convert project to stack-based build.

Change contents

• replacement in stack.yaml at line 10
  [3.10695]→[2.23341:23429](∅→∅)
  − - heist-1.0.1.0

  − - map-syntax-0.2.0.1

  − - snap-1.0.0.1

  − - snaplet-postgresql-simple-1.0.1.0
  [3.10695]

  [2.23429]
  + - snap-1.0.0.2

  + - snaplet-postgresql-simple-1.0.2.0

  + - haskoin-core-0.4.2

  + - heist-1.0.1.0

  + - map-syntax-0.2.0.2