* chore: handle empty or invalid secrets nicely

Signed-off-by: Roger Torrentsgenerós <rogert@spotify.com>

* chore: this belongs inside the if clause

Signed-off-by: Roger Torrentsgenerós <rogert@spotify.com>

* test: use old key too

Signed-off-by: Roger Torrentsgenerós <rogert@spotify.com>

* test: cover newly added code

Signed-off-by: Roger Torrentsgenerós <rogert@spotify.com>

* chore: make linter happy

Signed-off-by: Roger Torrentsgenerós <rogert@spotify.com>

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Signed-off-by: Roger Torrentsgenerós <rogert@spotify.com>