[FEAT] Change dsb_normalize_adt to use singularity not conda

- script `dsb_normalize_adt.R`, from rule `dsb_normalize_adt` uses dsb
package that is not available in conda
- use custom singularity image for this step, instead of conda env

workflow/rules/adt_dsb_normalization.smk

@@ -11,15 +11,14 @@ rule dsb_normalize_adt:
         CellrangerADT="results/cellranger_adt/{sample}.matrix.mtx",
     output:
         normalized="results/dsb_normalize_adt/{sample}.dsb_normalize_adt.RDS",
-    conda:
-        "../envs/dsb_normalize_adt.yaml"
+    singularity:
+        config["tools"]["dsb_normalize_adt"]["singularity"]
     params:
         adt_raw_dir=WORKDIR
         + "/results/cellranger_adt/{sample}/outs/raw_feature_bc_matrix/",
         adt_filtered_dir=WORKDIR
         + "/results/cellranger_adt/{sample}/outs/filtered_feature_bc_matrix/",
         outdir="results/dsb_normalize_adt/",
-        custom_script=workflow.source_path("../scripts/dsb_normalize_adt.R"),
     threads: config["computingResources"]["threads"]["high"]
     log:
         "logs/dsb_normalize_adt/{sample}.log",
@@ -29,7 +28,7 @@ rule dsb_normalize_adt:
     benchmark:
         "results/dsb_normalize_adt/benchmark/{sample}.benchmark"
     shell:
-        "Rscript {params.custom_script} "
+        "Rscript workflow/scripts/dsb_normalize_adt.R "
         "--adt_raw_dir {params.adt_raw_dir} "
         "--adt_filtered_dir {params.adt_filtered_dir} "
         "--outdir {params.outdir} "