Fix using boolean fields in condition indexes

Author: Nikolo

internal/pkg/backend/postgres/tmpl/pkg/index.tmpl

@@ -154,14 +154,16 @@ var index{{ $ind.Name }} = postgres.Index{
 			{{ if not $c.IsNullCheck -}}
 			Values: []any{
 			{{ range $_, $v := $c.Value }}
-				{{ $packerparam := packerParam $ifield.Format -}}
-				{{ $des := $packerparam.StringDeserializer }}
-				{{ if ne (len $des) 0 }}
-					{{ index $des 0 }}"{{ $v }}"{{ index $des 1 }},
-				{{ else if eq $ifield.Format "bool" }}
+				{{ if eq $ifield.Format "bool" }}
 					{{ $v }},
 				{{ else }}
-					"{{ $v }}",
+					{{ $packerparam := packerParam $ifield.Format -}}
+					{{ $des := $packerparam.StringDeserializer }}
+					{{ if ne (len $des) 0 }}
+						{{ index $des 0 }}"{{ $v }}"{{ index $des 1 }},
+					{{ else }}
+						"{{ $v }}",
+					{{ end }}
 				{{ end }}
 			{{ end }}
 			},