v3.2.9

Polynomials v3.2.9

Diff since v3.2.8

Merged pull requests:

• Bump actions/checkout from 2 to 3 (#482) (@dependabot[bot])
• Bump actions/cache from 1 to 3 (#483) (@dependabot[bot])
• Bump codecov/codecov-action from 1 to 3 (#484) (@dependabot[bot])
• Remove buggy type computation in scalar_mult. (#485) (@LilithHafner)
• fix typos (#486) (@spaette)
• Eltype fix; use T[] for 0-polynomial; speed up LaurentPolynomial operations (#487) (@jverzani)
• add extension for MutableArithmetics (#488) (@jverzani)
• Typo (#489) (@yakir12)
• Correct some typos (#491) (@goggle)
• improve copy_with_eltype (#492) (@jverzani)