Update dependency org.bstats:bstats-bukkit to v3.0.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.bstats:bstats-bukkit (source)	3.0.2 -> 3.0.3

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Release Notes

Bastian/bStats-Metrics (org.bstats:bstats-bukkit)

v3.0.3: Release 3.0.3

Version 3.0.3

Changes

• Use Plugin instead of JavaPlugin in Bukkit Metrics constructor (https://github.com/Bastian/bstats-metrics/pull/121)
• Mark bStats threads as daemon (https://github.com/Bastian/bstats-metrics/issues/123)
• Add option to MetricsBase constructor to skip relocation check (only for server implementations - not available to regular Metrics classes)

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