Bump golang to correct version

.github/workflows/integration.yaml

@@ -43,7 +43,7 @@ jobs:
     - name: Install Go
       uses: actions/setup-go@v2 
       with: 
-        go-version: '1.16.5'
+        go-version: '1.16.15'
     - name: Checkout
       uses: actions/checkout@v2
       with:
@@ -60,4 +60,4 @@ jobs:
     - name: On Failure, Launch Debug Session
       if: ${{ failure() }}
       uses: mxschmitt/action-tmate@v3
-      timeout-minutes: 5
+      timeout-minutes: 5
\ No newline at end of file

.github/workflows/unitcoverage.yaml

@@ -31,7 +31,7 @@ jobs:
     - name: Install Go
       uses: actions/setup-go@v2 
       with: 
-        go-version: '1.16.5'
+        go-version: '1.16.15'
     - name: Checkout
       uses: actions/checkout@v2
       with:

Dockerfile.dapper

-ARG GOLANG=golang:1.16.10-alpine3.13
+ARG GOLANG=golang:1.16.15-alpine3.15
 FROM ${GOLANG}
 
 ARG http_proxy=$http_proxy

Dockerfile.manifest

-ARG GOLANG=golang:1.16.10-alpine3.13
+ARG GOLANG=golang:1.16.15-alpine3.15
 FROM ${GOLANG}
 
 COPY --from=plugins/manifest:1.2.3 /bin/* /bin/

Dockerfile.test.dapper

-ARG GOLANG=golang:1.16.10-alpine3.13
+ARG GOLANG=golang:1.16.15-alpine3.15
 FROM ${GOLANG}
 
 RUN apk -U --no-cache add bash git gcc musl-dev docker curl jq coreutils python3 openssl py3-pip procps

Dockerfile.test.mod.dapper

-ARG GOLANG=golang:1.16.10-alpine3.13
+ARG GOLANG=golang:1.16.15-alpine3.15
 FROM ${GOLANG}
 
 RUN apk -U --no-cache add bash jq