Converted tools issue templates into new YAML form syntax

[ewels]

No description provided.

[codecov]

Codecov Report

Merging #1165 (060a38c) into dev (e9b6c63) will not change coverage.
The diff coverage is n/a.

❗ Current head 060a38c differs from pull request most recent head 012acbd. Consider uploading reports for the commit 012acbd to get more accurate results

@@           Coverage Diff           @@
##              dev    #1165   +/-   ##
=======================================
  Coverage   67.55%   67.55%           
=======================================
  Files          50       50           
  Lines        5610     5610           
=======================================
  Hits         3790     3790           
  Misses       1820     1820           

Impacted Files	Coverage Δ
nf_core/lint/files_exist.py	81.81% <ø> (ø)
nf_core/lint/files_unchanged.py	75.34% <ø> (ø)

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