chore(dependencies): bump bufbuild/buf:1.30.1 (#431)

https://github.com/bufbuild/buf/releases/tag/v1.30.1

> Fix issue where `buf lint` incorrectly reports an error for
`(buf.validate.field).repeated`
is set for a repeated validation rule.

Author: jkowalleck

tools/src/test/proto/test.sh

@@ -10,7 +10,7 @@ TEST_RES_DIR='tools/src/test/resources'
 
 REMOTE="https://github.com/${GITHUB_REPOSITORY:-CycloneDX/specification}.git"
 
-BUF_IMAGE_VERSION='1.30.0'
+BUF_IMAGE_VERSION='1.30.1'
 
 
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