feat: add tagFilter setting

[diranged]

This PR introduces a new tagFilter setting that allows users to filter out tags from the version checking logic. In our particular case, we have semver tags like v1.2.4 and then we have auto-generated tags named v1.2.4-chart. This was causing the SemVer action logic to fail:

Run ietf-tools/semver-action@v1
Comparing against latest tag: v1.2.4-chart
[PATCH] ...

>>> Will bump version v1.2.4-chart using PATCH

Current version is v1.2.4-chart
Next version is v1.2.4

With this new setting in place, I can set tagFilter: (.+)-(chart) and then it filters that tag out and we get the next version we expect:

Run diranged/semver-action@filter
Will filter out tags that match: (.+)-(chart)
Skipping tag "v1.2.4-chart" (matches tagFilter)
Comparing against latest tag: v1.2.4
[PATCH] ...

>>> Will bump version v1.2.4 using PATCH

Current version is v1.2.4
Next version is v1.2.5

[diranged]

@NGPixel,
What do you think of this change?

[diranged]

@NGPixel Ping?

[diranged]

Or @christian-draeger?