[lldb/API] Add missing `eBroadcastBitSymbolsChanged` to SBTarget (NFC) (#85883)

This patch exposes the missing `eBroadcastBitSymbolsChanged` event bit
in `SBTarget`.

Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>
GitOrigin-RevId: e2fa90fa0a4b7950dd0d7fae6933e89c075d0af0
1 file changed