Merge pull request #2266 from moj-analytical-services/dev8_release

splink 4 dev8 release

Merge pull request #2236 from moj-analytical-services/dev7_release

dev7 release

Merge pull request #2213 from moj-analytical-services/3_9_15_release

3.9.15 release

bump version

bump version

bump version

Merge pull request #2095 from moj-analytical-services/release_3_9_14

3.9.14 release

update release workflow

Merge pull request #2024 from moj-analytical-services/v3_9_13_release

v3.9.13 release

Merge pull request #1911 from moj-analytical-services/3_9_12_rel

3.9.12 Release