Remove the helm dependency update command from the pre-commit step in CI

[ubajze]

The CI in this repo runs helm dependency update in CI:

helm-charts/.github/workflows/ci.yaml

Line 32 in d0e261b

- run: "helm dependency update charts/nautobot"

The dependencies in Chart.yaml are defined with major versions only (for example:

helm-charts/charts/nautobot/Chart.yaml

Line 66 in d0e261b

version: "2.x.x"

). That is why Renovate only handles major versions.

I had to upgrade the dependencies while working on #471 to pass CI. This is not a desirable workflow. The dependencies should be upgraded in separate PRs.

The solution would be to define full versions in Chart.yaml, such as 2.26.0 as opposed to 2.27.0. Then Renovate can update minor and patch versions as well.

Adding for reference: https://docs.renovatebot.com/modules/manager/helmv3/