Update vendor

vendor/github.com/grpc-ecosystem/go-grpc-prometheus/test_all.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+set -e
+echo "" > coverage.txt
+
+for d in $(go list ./... | grep -v vendor); do
+    echo -e "TESTS FOR: for \033[0;35m${d}\033[0m"
+    go test -race -v -coverprofile=profile.coverage.out -covermode=atomic $d
+    if [ -f profile.coverage.out ]; then
+        cat profile.coverage.out >> coverage.txt
+        rm profile.coverage.out
+    fi
+    echo ""
+done