chore(deps): update containernetworking/azure-cni docker tag to v1.8.6

[renovate]

This PR contains the following updates:

Package	Update	Change
containernetworking/azure-cni	patch	v1.8.1-0 → v1.8.6-0

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[github-actions]

Changes cached containers or packages on windows VHDs

Please get a Windows SIG member to approve.

The following dif file shows any additions or deletions from what will be cached on windows VHDs organised by VHD type.

• Additions are new things cached.
• Deletions are things no longer cached.

diff --git a/vhd_files/2022-containerd-gen2.txt b/vhd_files/2022-containerd-gen2.txt
index cfac7fb..07504ef 100644
--- a/vhd_files/2022-containerd-gen2.txt
+++ b/vhd_files/2022-containerd-gen2.txt
@@ -105 +105 @@ mcr.microsoft.com/containernetworking/azure-cni:v1.7.15-0
-mcr.microsoft.com/containernetworking/azure-cni:v1.8.1-0
+mcr.microsoft.com/containernetworking/azure-cni:v1.8.6-0
diff --git a/vhd_files/2022-containerd.txt b/vhd_files/2022-containerd.txt
index f57c982..2ba9cde 100644
--- a/vhd_files/2022-containerd.txt
+++ b/vhd_files/2022-containerd.txt
@@ -105 +105 @@ mcr.microsoft.com/containernetworking/azure-cni:v1.7.15-0
-mcr.microsoft.com/containernetworking/azure-cni:v1.8.1-0
+mcr.microsoft.com/containernetworking/azure-cni:v1.8.6-0
diff --git a/vhd_files/2025-gen2.txt b/vhd_files/2025-gen2.txt
index d31b59b..9ab020b 100644
--- a/vhd_files/2025-gen2.txt
+++ b/vhd_files/2025-gen2.txt
@@ -35 +35 @@ mcr.microsoft.com/containernetworking/azure-cni:v1.7.15-0
-mcr.microsoft.com/containernetworking/azure-cni:v1.8.1-0
+mcr.microsoft.com/containernetworking/azure-cni:v1.8.6-0
diff --git a/vhd_files/2025.txt b/vhd_files/2025.txt
index 03661ca..1c9b023 100644
--- a/vhd_files/2025.txt
+++ b/vhd_files/2025.txt
@@ -35 +35 @@ mcr.microsoft.com/containernetworking/azure-cni:v1.7.15-0
-mcr.microsoft.com/containernetworking/azure-cni:v1.8.1-0
+mcr.microsoft.com/containernetworking/azure-cni:v1.8.6-0
diff --git a/vhd_files/23H2-gen2.txt b/vhd_files/23H2-gen2.txt
index 48dbfb0..5c909ee 100644
--- a/vhd_files/23H2-gen2.txt
+++ b/vhd_files/23H2-gen2.txt
@@ -55 +55 @@ mcr.microsoft.com/containernetworking/azure-cni:v1.7.15-0
-mcr.microsoft.com/containernetworking/azure-cni:v1.8.1-0
+mcr.microsoft.com/containernetworking/azure-cni:v1.8.6-0
diff --git a/vhd_files/23H2.txt b/vhd_files/23H2.txt
index 6b1ed52..a9b7811 100644
--- a/vhd_files/23H2.txt
+++ b/vhd_files/23H2.txt
@@ -55 +55 @@ mcr.microsoft.com/containernetworking/azure-cni:v1.7.15-0
-mcr.microsoft.com/containernetworking/azure-cni:v1.8.1-0
+mcr.microsoft.com/containernetworking/azure-cni:v1.8.6-0