fix(parser): add semicolon to declaration recovery set

[jonatcln]

Example of a problem this fixes:

use;
pub fn main() {}

Original output:

error: syntax error
 --> mod.mun:1:4
  |
1 | use;
  |    ^ expected one of `self`, `super`, `package` or an identifier
  |error: syntax error
 --> mod.mun:1:5
  |
1 | use;
  |     ^ expected SEMI
  |

Output after fix:

error: syntax error
 --> mod.mun:1:4
  |
1 | use;
  |    ^ expected one of `self`, `super`, `package` or an identifier
  |

[baszalmstra]

Nice one too! The CI should be fixed with #366, once that's merged could you rebase your changes on the latest main? Ill drop a comment here once that happens.

[baszalmstra]

Yes! #366 has been merged! Could you rebase on main? Should fix the CI!

[codecov]

Codecov Report

Merging #365 (1e83362) into main (6fa4e7b) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #365      +/-   ##
==========================================
- Coverage   82.63%   82.63%   -0.01%     
==========================================
  Files         264      264              
  Lines       15297    15297              
==========================================
- Hits        12641    12640       -1     
- Misses       2656     2657       +1     

Impacted Files	Coverage Δ
...tes/mun_syntax/src/parsing/grammar/declarations.rs	96.15% <ø> (ø)
crates/mun_hir/src/ty/infer/type_variable.rs	80.35% <0.00%> (-0.90%)	⬇️

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[jonatcln]

Rebased!