Add suport for Ruby 3.2 and remove Rails 5.*

[adamcrown]

• Ruby 3.2 is out now, so add support for it
• Also, remove support for Rail 5.* as it is getting pretty old
• Test all suported Ruby versions

[codacy-production[bot]]

Coverage summary from Codacy

Merging #80 (a899688e55acb3241aaeaa531f13bcb216863470) into main (4fbd4f1c74d49776cad69b320988d7a38c1bccfd) - See PR on Codacy

Coverage variation	Diff coverage
:white_check_mark: +0.00% (target: -1.00%)	∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (4fbd4f1c74d49776cad69b320988d7a38c1bccfd)	1100	1100	100.00%
Head commit (a899688e55acb3241aaeaa531f13bcb216863470)	1100 (+0)	1100 (+0)	100.00% (+0.00%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#80)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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