The Bay Area and California added jobs in November, but amid widening tech and biotech mass layoffs, the employment gains in both regions slowed significantly, a government report released on Friday shows. The nine-county Bay region added 7,400 jobs in November, the new report shows. That increase, however, was the third-smallest monthly gain so far during the first 11 months of 2022, the new report from the state Employment Development Department shows. The South Bay added 2,000 jobs, the East Bay gained 1,100 and the San Francisco-San Mateo metro area added 3,000 jobs. All the numbers were a…