[sw] Change cert template engine to pre-generated method. #6382

Job	Run time
Lint (quick)	3m 38s
Lint (slow)	11m 21s
Build documentation	5m 17s
Airgapped build	12m 8s
Run OTBN crypto tests	2m 45s
Run OTBN smoke Test	2m 46s
Verible lint	1m 5s
Verilated English Breakfast	3m 43s
Verilated Earl Grey	1h 1m 51s
Build Docker Containers	2m 32s
CW305's Bitstream	2m 50s
Build and test Darjeeling software	3m 28s
QEMU smoketest	2m 18s
Build and test software	19m 51s
Earl Grey for CW310 / Build bitstream	2m 43s
Earl Grey for CW310 Hyperdebug / Build bitstream	2m 49s
Earl Grey for CW340 / Build bitstream	2m 45s
CW310 Test ROM Tests / FPGA test	3m 28s
CW310 ROM Tests / FPGA test	34m 36s
CW310 SiVal ROM_EXT Tests / FPGA test	27m 40s
Hyper310 ROM_EXT Tests / FPGA test	13m 9s
CW310 SiVal Tests / FPGA test	22m 33s
CW310 Manufacturing Tests / FPGA test	23m 8s
Cache bitstreams to GCP	0s
CW340 ROM Tests / FPGA test	54s
CW340 ROM_EXT Tests / FPGA test	6m 40s
CW340 SiVal Tests / FPGA test	18m 17s
CW340 SiVal ROM_EXT Tests / FPGA test	4m 26s
CW340 Manufacturing Tests / FPGA test	34m 27s
CW340 Test ROM Tests / FPGA test	2m 44s
Verify FPGA jobs	25s
	5h 36m 17s

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