bump golang to 1.21

.github/workflows/go.yml

@@ -7,10 +7,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
-    - name: Set up Go 1.20
+    - name: Set up Go 1.21
       uses: actions/setup-go@v1
       with:
-        go-version: 1.20
+        go-version: 1.21
       id: go
 
     - name: Check out code into the Go module directory

SECURITY.md

@@ -2,20 +2,14 @@
 
 ## Supported Versions
 
-Use this section to tell people about which versions of your project are
-currently being supported with security updates.
+Versions are currently being supported with security updates.
 
 | Version | Supported          |
 | ------- | ------------------ |
-| 5.1.x   | :white_check_mark: |
-| 5.0.x   | :x:                |
-| 4.0.x   | :white_check_mark: |
-| < 4.0   | :x:                |
+| 2.x.x   | :white_check_mark: |
+| 1.x.x   | :x:                |
 
-## Reporting a Vulnerability
 
-Use this section to tell people how to report a vulnerability.
+## Reporting a Vulnerability
 
-Tell them where to go, how often they can expect to get an update on a
-reported vulnerability, what to expect if the vulnerability is accepted or
-declined, etc.
+Create an issue https://github.com/shvc/s3cli/issues