Update sbt-protobuf to 0.7.3

[scala-steward]

About this PR

📦 Updates com.github.sbt:sbt-protobuf from 0.7.2 to 0.7.3

📜 GitHub Release Notes - Version Diff

Usage

✅ Please merge!

I'll automatically update this PR to resolve conflicts as long as you don't change it yourself.

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⚙ Adjust future updates

Add this to your `.scala-steward.conf` file to ignore future updates of this dependency: ``` updates.ignore = [ { groupId = "com.github.sbt", artifactId = "sbt-protobuf" } ] ``` Or, add this to slow down future updates of this dependency: ``` dependencyOverrides = [{ pullRequests = { frequency = "30 days" }, dependency = { groupId = "com.github.sbt", artifactId = "sbt-protobuf" } }] ```

^{labels: sbt-plugin-update, early-semver-minor, semver-spec-patch, commit-count:1}