Fixes tests on CI & Docker

[codecov[bot]]

Codecov Report

Merging #303 (c808d06) into main (5729bff) will decrease coverage by 59.79%. The diff coverage is 20.55%.

:exclamation: Current head c808d06 differs from pull request most recent head fec6bb0. Consider uploading reports for the commit fec6bb0 to get more accurate results

@@             Coverage Diff             @@
##             main     #303       +/-   ##
===========================================
- Coverage   88.81%   29.02%   -59.79%     
===========================================
  Files           6       14        +8     
  Lines         143      882      +739     
===========================================
+ Hits          127      256      +129     
- Misses         16      626      +610     

Flag	Coverage Δ
polkadart_scale_codec	?
ss58	?
ss58_codec	?

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Impacted Files	Coverage Δ
packages/polkadart/lib/apis/state.dart	0.00% <0.00%> (ø)
...ges/polkadart/lib/primitives/runtime_metadata.dart	0.00% <0.00%> (ø)
packages/polkadart/lib/primitives/storage.dart	0.00% <0.00%> (ø)
packages/polkadart/lib/provider.dart	0.00% <0.00%> (ø)
packages/polkadart/lib/substrate/storage.dart	0.00% <0.00%> (ø)
...ages/polkadart/lib/primitives/runtime_version.dart	1.26% <1.26%> (ø)
packages/polkadart/lib/primitives/api_version.dart	4.34% <4.34%> (ø)
packages/polkadart/lib/substrate/xxh64.dart	43.61% <43.61%> (ø)
packages/ss58/lib/src/address.dart	92.64% <78.26%> (ø)
packages/polkadart/lib/substrate/hasher.dart	85.00% <85.00%> (ø)
... and 4 more