Snort v3.1.48.0

Changes in this release since 3.1.47.0:

• appid: added config for logging alpn service mappings
• appid: fixed addition of duplicate entries in app_info_table
• appid: make appid availability independent from TP state
• cmake: add FLEX build macro
• doc: update sensitive data documentation
• doc: update user/js_norm.txt for PDF
• flow: add an event for retry packets
• flow: added an event to allow post processing of new expected flows
• flow: fix deferred trust clear when packet is dropped
• flow, stream: added code to track and event for one-sided TCP sessions and generate an event for established or one-sided flows
• http_inspect: add decompression failure check before normalization
• http_inspect: remove port from xff header
• ips_option: keep cursor intact for a negated content mismatched
• ips_option: keep cursor intact for a negated hash mismatched
• js_norm: implement Enhanced JS Normalization for PDF
• js_norm: use FLEX macro to build parser
• process: watchdog to abort snort when multiple packet thread becomes unresponsive
• smb: handling smb duplicate sessions
• stream: add logic to ensure metaACKs cause flushing