this is going to be painfull
my advice would be to do it manually
BUT if you query msdb.dbo.sysjobsteps there is a column called "command".. you could try and scrape proc and table names from that and then build a cursor to look at the procs and check the object_definition to see if it includes that table
other than that, use redgate sql search, look for the procs that use that table, then query sysjobsteps for anything that matches your list of procs