fix: Dockerfile to reduce vulnerabilities (#207)

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-DEBIAN11-OPENSSH-2422621
- https://snyk.io/vuln/SNYK-DEBIAN11-OPENSSL-2388380
- https://snyk.io/vuln/SNYK-DEBIAN11-OPENSSL-2388380
- https://snyk.io/vuln/SNYK-DEBIAN11-OPENSSL-2426309
- https://snyk.io/vuln/SNYK-DEBIAN11-OPENSSL-2426309

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.16
+FROM golang:1
 
 # Install pact ruby standalone binaries
 RUN curl -LO https://github.com/pact-foundation/pact-ruby-standalone/releases/download/v1.88.78/pact-1.88.78-linux-x86_64.tar.gz; \