feat: support usage as Copy On Write for any lifetime

[polazarus]

extend to non-static borrow

[codecov-commenter]

Codecov Report

Merging #1 (51efbb0) into main (0faaa23) will decrease coverage by 0.68%.
The diff coverage is 92.79%.

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@@            Coverage Diff             @@
##             main       #1      +/-   ##
==========================================
- Coverage   97.72%   97.04%   -0.68%     
==========================================
  Files          14       13       -1     
  Lines        1888     1963      +75     
==========================================
+ Hits         1845     1905      +60     
- Misses         43       58      +15     

Files Changed	Coverage Δ
src/string/serde.rs	77.46% <65.21%> (-22.54%)	⬇️
src/bytes.rs	98.85% <100.00%> (+0.04%)	⬆️
src/bytes/cmp.rs	100.00% <100.00%> (ø)
src/bytes/convert.rs	100.00% <100.00%> (ø)
src/bytes/serde.rs	100.00% <100.00%> (+1.31%)	⬆️
src/raw.rs	94.04% <100.00%> (ø)
src/raw/borrowed.rs	89.47% <100.00%> (ø)
src/string.rs	97.54% <100.00%> (+0.08%)	⬆️
src/string/cmp.rs	100.00% <100.00%> (ø)
src/string/convert.rs	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes