core: Fix TestContext2Apply_unstable
core: Fix TestContext2Apply_unstable

This expected count was a faulty port from the old logic. It expects 36
characters because this attribute value is a UUID string.

hashicorp/terraform,pdecat/terraform,iljaskevic/terraform,gechr/terraform,ewbankkit/terraform,VladRassokhin/terraform,gechr/terraform,luis-silva/terraform,apparentlymart/terraform,VladRassokhin/terraform,iljaskevic/terraform,pryorda/terraform,youhong316/terraform,mattray/terraform,drebes/terraform,drebes/terraform,drebes/terraform,apparentlymart/terraform,heimweh/terraform,iljaskevic/terraform,hashicorp/terraform,apparentlymart/terraform,brandontosch/terraform,pradeepbhadani/terraform,tpounds/terraform,pdecat/terraform,pradeepbhadani/terraform,mattray/terraform,youhong316/terraform,mattray/terraform,heimweh/terraform,tpounds/terraform,pryorda/terraform,ewbankkit/terraform,ewbankkit/terraform,VladRassokhin/terraform,rnaveiras/terraform,youhong316/terraform,tommynsong/terraform,tpounds/terraform,ewbankkit/terraform,tommynsong/terraform,apparentlymart/terraform,rnaveiras/terraform,gechr/terraform,youhong316/terraform,apparentlymart/terraform,rnaveiras/terraform,brandontosch/terraform,drebes/terraform,pdecat/terraform,luis-silva/terraform,brandontosch/terraform,mattray/terraform,VladRassokhin/terraform,nlamirault/terraform,heimweh/terraform,iljaskevic/terraform,hashicorp/terraform,luis-silva/terraform,nlamirault/terraform,nlamirault/terraform,tpounds/terraform,luis-silva/terraform,brandontosch/terraform,pryorda/terraform,tommynsong/terraform,pradeepbhadani/terraform,pdecat/terraform,heimweh/terraform,heimweh/terraform,brandontosch/terraform