v2.3.10 - replace deplocated file upload API

What’s Changed

use new slack file upload API (#639) @brainexe
see: https://api.slack.com/changelog/2024-04-a-better-way-to-upload-files-is-here-to-stay

dependencies

• bump docker/build-push-action from 6.7.0 to 6.10.0 (#620, #638)
• bump codecov/codecov-action from 4 to 5 (#634)
• bump github.com/xanzy/go-gitlab from 0.108.0 to 0.114.0 (#622, #626, #636)
• bump github.com/redis/go-redis/v9 from 9.6.1 to 9.7.0 (#633)
• bump golang.org/x/text from 0.18.0 to 0.20.0 (#624, #632)
• bump docker/setup-buildx-action from 3.6.1 to 3.7.1 (#629)
• bump github.com/golang-jwt/jwt/v4 from 4.5.0 to 4.5.1 (#630)
• bump github.com/slack-go/slack from 0.14.0 to 0.15.0 (#627)
• bump wangyoucao577/go-release-action from 1.50 to 1.52 (#625)
• bump golangci/golangci-lint-action from 6.1.0 to 6.1.1 (#621)
• bump github.com/prometheus/client_golang from 1.20.3 to 1.20.4 (#618)