Make Lazy::Drop always clear up all its storage

[cmichi]

No description provided.

[codecov-io]

Codecov Report

Merging #597 (74d7747) into master (527e0ac) will decrease coverage by 0.01%.
The diff coverage is 91.66%.

@@            Coverage Diff             @@
##           master     #597      +/-   ##
==========================================
- Coverage   67.28%   67.27%   -0.02%     
==========================================
  Files         155      155              
  Lines        6915     6921       +6     
==========================================
+ Hits         4653     4656       +3     
- Misses       2262     2265       +3     

Impacted Files	Coverage Δ
crates/storage/src/collections/stash/tests.rs	100.00% <ø> (ø)
crates/storage/src/collections/vec/tests.rs	100.00% <ø> (ø)
crates/storage/src/lazy/lazy_cell.rs	97.26% <91.66%> (-1.25%)	⬇️
...ates/storage/src/collections/hashmap/fuzz_tests.rs	97.26% <0.00%> (-2.74%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 527e0ac...715cd1d. Read the comment docs.

[Robbepop]

LGTM!

Let's wait for CI to approve.