fix(ncdump): don't print info in section heading

[engeir]

Fixes #263.

[sourcery-ai]

Sourcery Code Quality Report

✅  Merging this PR will increase code quality in the affected files by 0.06%.

Quality metrics	Before	After	Change
Complexity	32.00 😞	32.00 😞	0.00
Method Length	242.00 ⛔	239.50 ⛔	-2.50 👍
Working memory	0.00 ⭐	0.00 ⭐	0.00
Quality	13.85% ⛔	13.91% ⛔	0.06% 👍

Other metrics	Before	After	Change
Lines	161	161	0

Changed files	Quality Before	Quality After	Quality Change
src/ncdump_rich/ncdump.py	13.85% ⛔	13.91% ⛔	0.06% 👍

Here are some functions in these files that still need a tune-up:

File	Function	Complexity	Length	Working Memory	Quality	Recommendation
src/ncdump_rich/ncdump.py	ncdump	32 😞	458 ⛔		13.91% ⛔	Refactor to reduce nesting. Try splitting into smaller methods

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