New release 0.6.0

Breaking changes

• Changed DecodeError from struct to enum. (5e39d65)
• Changed EncodeError from struct to enum. (0353682)
• DecodeError and EncodeError is marked as non_exhaustive. (1e7454c)
• Removed the use of anyhow. (5e39d65, 0353682)
• Replaced paste with pastey. (8897cf0)

New features

• Add parse_i64(). (414d14e)

Bug fixes

• N/A