Fix commit encoding tests

[rajarshimaitra]

This fixes test failures due to recent changes in encoding algorithms.

Ref #8 (comment)

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@db9c5df). Click here to learn what that means.
The diff coverage is 0.0%.

@@           Coverage Diff            @@
##             master     #21   +/-   ##
========================================
  Coverage          ?   20.2%           
========================================
  Files             ?      21           
  Lines             ?    1245           
  Branches          ?       0           
========================================
  Hits              ?     251           
  Misses            ?     994           
  Partials          ?       0           

Impacted Files	Coverage Δ
rgb20/src/processor.rs	0.0% <ø> (ø)
src/bech32.rs	100.0% <ø> (ø)
src/contract/assignments.rs	0.0% <0.0%> (ø)
src/contract/metadata.rs	0.0% <ø> (ø)
src/contract/nodes.rs	0.0% <0.0%> (ø)
src/contract/seal.rs	0.0% <ø> (ø)
src/contract/value.rs	0.0% <ø> (ø)
src/lib.rs	18.4% <0.0%> (ø)
src/schema/nodes.rs	100.0% <ø> (ø)
src/schema/schema.rs	56.2% <ø> (ø)

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