Set log level when using github action.

[hkadakia]

By default the log level set is debug. Is it possible to configure the log level?

Run anchore/sbom-action@fd74a6fb98a204a1ad35bbfae0122c1a302ff88b
[0000]  INFO syft version: 0.97.1
  
  [0000] DEBUG config:
    log:
        quiet: false
        level: debug
        file: ""

[0000] DEBUG image metadata: digest=sha256:1a706d0b1e225bd02213f78253d754184d0ad48ad444692ee61d42c79fec86b9 mediaType=application/vnd.docker.distribution.manifest.v2+json tags=[]
  
  [0000] DEBUG layer metadata: index=0 digest=sha256:02a5a715269e2f45851bfbc5c7394e062442d8b12e1c3b7934c24a5fe9fa72f4 mediaType=application/vnd.docker.image.rootfs.diff.tar.gzip
  
  [0011] DEBUG layer metadata: index=1 digest=sha256:cda67039292b2a826f7b07ecec3b88eb9fe7d026b03b8f5dbcb0bec35800e730 mediaType=application/vnd.docker.image.rootfs.diff.tar.gzip
  
  [0011] DEBUG layer metadata: index=2 digest=sha256:7e712fa4c20694649a731d22b9cd220052919a97dfef57d46897b4b241ce3a3b mediaType=application/vnd.docker.image.rootfs.diff.tar.gzip
...