Update go dependencies to latest and actions used in workflows (#2510)

* Updated all Go language dependencies to latest version available
* Formatted all files as per gofmt
* Update Golangci-lint version to 1.48.0
* Updated action version wherer application in Github workflows
* Updated Kubernetes version to latest available
* Remove "io/ioutil" references and replace with "io"/"os"

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

test/tests/test_huge_response/hello.go

@@ -1,14 +1,14 @@
 package main
 
 import (
-	"io/ioutil"
+	"io"
 	"log"
 	"net/http"
 )
 
 // Handler is the entry point for this fission function
 func Handler(w http.ResponseWriter, r *http.Request) { //nolint:golint,unused,deadcode
-	bytes, err := ioutil.ReadAll(r.Body)
+	bytes, err := io.ReadAll(r.Body)
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)
 		return