Alembic migration for adding a mustache tag in the existing PPR capability templates

...s/alembic/versions/985ca1bdec62_dynamic_ppr_procedures.py

...aces/alembic/versions/templates/restore_cms/ppr_2.8.4.txt

...aces/alembic/versions/templates/restore_cms/ppr_2.8.5.txt

.../alembic/versions/templates/std_calibration/ppr_2.8.4.txt

.../alembic/versions/templates/std_calibration/ppr_2.8.5.txt

.../alembic/versions/templates/std_cms_imaging/ppr_2.8.4.txt

.../alembic/versions/templates/std_cms_imaging/ppr_2.8.5.txt

...mbic/versions/templates/std_restore_imaging/ppr_2.8.4.txt

...mbic/versions/templates/std_restore_imaging/ppr_2.8.5.txt