Update jinja template to use floats instead of int

This fixes a crash in the generation of the pdf report when there is
expression of the MECOM gene. If there is MECOM expression, the read
counts are actually floats, not integers, which leads to a crash.
8 jobs for master
Status Job ID Name Coverage
  Sanity
failed test_sanity #10365
slurm

 
  Dry Run
skipped test_dry_run #10366
slurm
 
  Integration
skipped expression #10369
slurm
skipped fusion #10370
slurm
skipped itd #10371
slurm
skipped qc_seq #10367
slurm
skipped snv_indels #10368
slurm
 
  Report
skipped hamlet_report #10372
slurm
 
Name Stage Failure
failed
test_sanity Sanity There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log