refactor: Pass printer to text handler

[TerryHowe]

What this PR does / why we need it:

Pass printer object to text handler.

• Fewer arguments to the handlers
• Handlers use the same mutex used elsewhere

I'm going to explore the possibility of passing the printer to the json and template handler, but trying to keep this small.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 85.32%. Comparing base (37941a0) to head (c96490c).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1420 +/- ## ========================================== - Coverage 85.33% 85.32% -0.01% ========================================== Files 106 106 Lines 3798 3810 +12 ========================================== + Hits 3241 3251 +10 - Misses 333 334 +1 - Partials 224 225 +1 ```

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[qweeah]

I'm going to explore the possibility of passing the printer to the json and template handler, but trying to keep this small.

Making printer implement io.Writer should help.