Cleanup references to master branch (#1710)

.github/workflows/deploy-docs.yaml

@@ -3,7 +3,7 @@ on:
   workflow_dispatch:
   push:
     branches:
-      - 'master'
+      - 'main'
 jobs:
   mkdocs:
     permissions:

.github/workflows/update-changelog.yaml

@@ -24,7 +24,7 @@ jobs:
       - uses: actions/checkout@v3
         with:
           repository: awslabs/amazon-eks-ami
-          ref: refs/heads/master
+          ref: refs/heads/main
           path: amazon-eks-ami/
       - uses: actions/github-script@v6
         with:

.github/workflows/update-dependency.yaml

@@ -39,9 +39,9 @@ jobs:
           author: github-actions <actions@github.com>
           branch: dependencies/update
           branch-suffix: timestamp
-          base: master
+          base: main
           delete-branch: true
           labels: |
             changelog/exclude
           body: |
-            Updating go.mod with latest dependencies.
+            Updating go.mod with latest dependencies.

nodeadm/internal/kubelet/eni_max_pods.go

@@ -46,11 +46,10 @@ func init() {
 }
 
 // CalcMaxPods handle the edge case when instance type is not present in MaxPodsPerInstanceType
-// The behavior should align with AL2:
-// https://github.com/awslabs/amazon-eks-ami/blob/master/files/bootstrap.sh#L514
-// which essentially is
+// The behavior should align with AL2, which essentially is:
 //
 //	# of ENI * (# of IPv4 per ENI - 1) + 2
+//
 func CalcMaxPods(awsRegion string, instanceType string) int32 {
 	zap.L().Info("calculate the max pod for instance type", zap.String("instanceType", instanceType))
 	cfg, err := config.LoadDefaultConfig(context.Background(), config.WithRegion(awsRegion))