feat: scope the CI and add QoL improvements

[zivkovicmilos]

Description

This PR modifies the monorepo workflows, and introduces QoL improvements to the overall CI.
The PR is not meant to be a cover-all fix for the CI, but a start on how we can begin improving it.

@gfanton We should start looking into how to group txtars soon 🙏

[Gno2D2]

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Determine if infra needs to be updated before merging

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└── 🟢 And
    ├── 🟢 The base branch matches this pattern: master
    └── 🟢 Or
        ├── 🔴 A changed file matches this pattern: Dockerfile
        ├── 🔴 A changed file matches this pattern: ^misc/deployments
        ├── 🔴 A changed file matches this pattern: ^misc/docker-
        ├── 🟢 A changed file matches this pattern: ^.github/workflows/releaser.*\.yml$ (filename: .github/workflows/releaser-master.yml)
        └── 🟢 A changed file matches this pattern: ^.github/workflows/portal-loop\.yml$ (filename: .github/workflows/portal-loop.yml)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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[ajnavarro]

Left some comments. The most important ones are keeping go version in less config files as possible and keep dependabot tags as they were, because they will be easier to maintain (everything needed to create a new workflow is in only one config file, you don't need to change dependabot config)

[zivkovicmilos]

Skipping @Gno2D2 check since @sw360cab is OOO, and there are no infra changes needed with this PR