fix(pushover): send all devices in single request

[piksel]

,..and don't skip sending if devices is not provided

[codecov]

Codecov Report

Merging #115 (0add3cc) into main (1290cec) will increase coverage by 5.60%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #115      +/-   ##
==========================================
+ Coverage   52.79%   58.40%   +5.60%     
==========================================
  Files          55       55              
  Lines        1161     1166       +5     
==========================================
+ Hits          613      681      +68     
+ Misses        512      436      -76     
- Partials       36       49      +13     

Impacted Files	Coverage Δ
pkg/services/pushover/pushover_config.go	90.00% <ø> (ø)
pkg/services/pushover/pushover.go	67.74% <100.00%> (+67.74%)	⬆️
pkg/services/slack/slack.go	63.63% <0.00%> (+41.41%)	⬆️
pkg/services/gotify/gotify.go	73.33% <0.00%> (+44.76%)	⬆️
pkg/services/gotify/gotify_config.go	86.66% <0.00%> (+86.66%)	⬆️
pkg/services/slack/slack_json.go	100.00% <0.00%> (+100.00%)	⬆️

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[whvanderpost]

Hi,
Today I was trying to get Watchtower to also send Pushover notifications with Shoutrrr and noticed that I have to supply the device parameter otherwise no message is being pushed.
Does the change in this code also end up in the Watchtower project or will Watchtower always require a device parameter?

[piksel]

It should be included in the next release of watchtower.