[PECO-1116] Change version of GO being used in Github Action (#169)

We need to change the version that we have in our Github action and bump
the requirements in the go registry. (May also need to do major version
change)

Author: nithinkdb

.github/workflows/go.yml

@@ -23,7 +23,7 @@ jobs:
     name: Test and Build
     strategy:
       matrix:
-        go-version: [1.19.x]
+        go-version: [1.20.x]
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
 

go.mod

@@ -1,6 +1,6 @@
 module github.com/databricks/databricks-sql-go
 
-go 1.19
+go 1.20
 
 require (
 	github.com/apache/arrow/go/v12 v12.0.1