v9.1.0

Feat

• add counters for rejected, rate-limited, and blackout alerts (#2049)
• auth: add CAS authentication provider (#2045)
• Allow LDAP users with no email set to log in (#2038)
• add SMTP_SKIP_SSL_VERIFY option (#1955)
• add pagination support to environments endpoint (#2029)

Fix

• remove default query limit cap on internal Postgres queries (#2051)
• blackout matching fails when service/tags are NULL after update (#2050)
• unack fails when ack entry evicted from history by HISTORY_LIMIT (#2048)
• security: restrict self-update endpoint to allowlisted fields (#2047)
• add missing StrEnum dependency, replace print with logging, fix schema injection (#2046)
• mongodb querybuilder missing the valid_filter_params check (#2039)
• security: parameterize Postgres query parser to prevent SQL injection (#2040)
• deps: replace pkg_resources with importlib.metadata (#2041)
• db: change keys.count field type from integer to bigint (#1976)