update kat to v1.15

Author: punit-kulal

.github/workflows/pull-request.yml

@@ -10,7 +10,7 @@ jobs:
       - name: setup-go
         uses: actions/setup-go@v2
         with:
-          go-version: '^1.13.1'
+          go-version: '^1.15.1'
       - name: setup-project
         run: make setup
       - name: build
@@ -25,7 +25,7 @@ jobs:
       - name: setup-go
         uses: actions/setup-go@v2
         with:
-          go-version: '^1.13.1'
+          go-version: '^1.15.1'
       - name: setup-project
         run: make setup
       - name: test-project
@@ -38,7 +38,7 @@ jobs:
       - name: setup-go
         uses: actions/setup-go@v2
         with:
-          go-version: '^1.13.1'
+          go-version: '^1.15.1'
       - name: setup-project
         run: make setup
       - name: lint

go.mod

@@ -1,6 +1,6 @@
 module github.com/gojek/kat
 
-go 1.12
+go 1.15
 
 require (
 	bou.ke/monkey v1.0.2