Fix Linting Errors (oauth2-proxy#1835)

* initial commit: add groups to azure

Signed-off-by: andrewphamade@gmail.com <andrewphamade@gmail.com>

* fix deprecations and linting errors

Signed-off-by: Andrew Hamade <andrewphamade@gmail.com>

* remove groups testing from azure provider

Signed-off-by: Andrew Hamade <andrewphamade@gmail.com>

* fix test error

Signed-off-by: Andrew Hamade <andrewphamade@gmail.com>

* verify-generate

Signed-off-by: Andrew Hamade <andrewphamade@gmail.com>

Signed-off-by: andrewphamade@gmail.com <andrewphamade@gmail.com>
Signed-off-by: Andrew Hamade <andrewphamade@gmail.com>

Author: devopstagon

docs/docs/configuration/alpha_config.md

@@ -306,7 +306,7 @@ the caller provides it, and no value will be sent otherwise.
 
 Examples:
 
-A parameter whose value is fixed
+# A parameter whose value is fixed
 
 ```
 name: organization
@@ -354,8 +354,9 @@ as backslash is not considered to be an escape character.  Alternatively
 use the "chomped block" format `|-`:
 
 ```
-- pattern: |-
+  - pattern: |-
     ^[^@]*@example\.com$
+
 ```
 
 The hyphen is important, a `|` block would have a trailing newline

main_test.go

@@ -3,7 +3,6 @@ package main
 import (
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"strings"
 	"time"
@@ -191,7 +190,7 @@ redirect_url="http://localhost:4180/oauth2/callback"
 
 			if in.configContent != "" {
 				By("Writing the config to a temporary file", func() {
-					file, err := ioutil.TempFile("", "oauth2-proxy-test-config-XXXX.cfg")
+					file, err := os.CreateTemp("", "oauth2-proxy-test-config-XXXX.cfg")
 					Expect(err).ToNot(HaveOccurred())
 					defer file.Close()
 
@@ -204,7 +203,7 @@ redirect_url="http://localhost:4180/oauth2/callback"
 
 			if in.alphaConfigContent != "" {
 				By("Writing the config to a temporary file", func() {
-					file, err := ioutil.TempFile("", "oauth2-proxy-test-alpha-config-XXXX.yaml")
+					file, err := os.CreateTemp("", "oauth2-proxy-test-alpha-config-XXXX.yaml")
 					Expect(err).ToNot(HaveOccurred())
 					defer file.Close()