Fix E2E tests CI run

[SkymanOne]

NOT READY FOR MERGE

[ascjones]

I believe these flaky tests should now have been fixed by: #1642

[codecov-commenter]

Codecov Report

Merging #1638 (047a3bc) into master (ce64dbe) will decrease coverage by 0.85%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1638      +/-   ##
==========================================
- Coverage   64.78%   63.94%   -0.85%     
==========================================
  Files         207      207              
  Lines        6376     6376              
==========================================
- Hits         4131     4077      -54     
- Misses       2245     2299      +54     

Impacted Files	Coverage Δ
crates/engine/src/chain_extension.rs	19.04% <0.00%> (-23.81%)	⬇️
crates/metadata/src/lib.rs	35.00% <0.00%> (-20.00%)	⬇️
crates/primitives/src/types.rs	0.00% <0.00%> (-20.00%)	⬇️
crates/engine/src/test_api.rs	72.52% <0.00%> (-13.19%)	⬇️
crates/engine/src/ext.rs	55.36% <0.00%> (-13.00%)	⬇️
crates/storage/traits/src/layout/impls.rs	0.00% <0.00%> (-10.00%)	⬇️
crates/metadata/src/layout/mod.rs	77.50% <0.00%> (-3.34%)	⬇️
crates/allocator/src/bump.rs	88.23% <0.00%> (-0.85%)	⬇️
crates/ink/ir/src/ir/attrs.rs	78.26% <0.00%> (+0.28%)	⬆️

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