R33

Bugfix and performance improvements.

• Discourse announcement

Bugfixes

• Common: fix ambigrous empty string (#171)
• Common: create a separate modules root (#195)
• RDB Shredder: optimize DAG (#181)
• RDB Shredder: use single etl_tstamp for cross-batch deduplication (#180)
• Loader: mitigate exhausted input error (#203)
• Loader: fix ignored schema in metadata queries (#178)

Under the hood

• Common: integrate coveralls (#220)
• Common: integrate Snyk (#188)
• Common: integrate Scala Steward (#206)
• Common: switch to Github Actions (#189)
• Common: disable test in assembly (#202)
• Loader: switch from Free monad to cats-effect IO (#184)

Removed features

• Common: remove Processing Manifest (#186)
• RDB Loader: remove Postgres support (#191)
• Loader: drop legacy S3 paths (#198)

Dependency updates

• Common: bump snowplow-scala-analytics-sdk to 2.1.0 (#201)
• Common: bump snowplow-badrows to 2.1.0 (#199)
• Common: bump specs2-core to 4.10.5 (#197)
• Common: bump schema-ddl to 0.12.0 (#192)
• Common: bump sbt to 1.4.4 (#196)
• Common: bump Scala to 2.12 (#127)
• RDB Shredder: bump Spark to 3.0.1 (#101)
• RDB Loader: bump jsch to 0.1.55 (#177)