chore: bump kubeblocks to v1.0.3-beta and remove preflight API

KubeBlocks v1.0.3-beta removed the preflight API, so all related collectors,
analyzers, and preflight command code are cleaned up. Updated go.mod, go.sum,
docs, and removed associated testdata files.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: shanshanying

docs/user_docs/cli/cli.md

@@ -133,7 +133,6 @@ KubeBlocks operation commands.
 * [kbcli kubeblocks describe-config](kbcli_kubeblocks_describe-config.md)	 - Describe KubeBlocks config.
 * [kbcli kubeblocks install](kbcli_kubeblocks_install.md)	 - Install KubeBlocks.
 * [kbcli kubeblocks list-versions](kbcli_kubeblocks_list-versions.md)	 - List KubeBlocks versions.
-* [kbcli kubeblocks preflight](kbcli_kubeblocks_preflight.md)	 - Run and retrieve preflight checks for KubeBlocks.
 * [kbcli kubeblocks status](kbcli_kubeblocks_status.md)	 - Show list of resource KubeBlocks uses or owns.
 * [kbcli kubeblocks uninstall](kbcli_kubeblocks_uninstall.md)	 - Uninstall KubeBlocks.
 * [kbcli kubeblocks upgrade](kbcli_kubeblocks_upgrade.md)	 - Upgrade KubeBlocks.

docs/user_docs/cli/kbcli_kubeblocks.md

@@ -42,7 +42,6 @@ KubeBlocks operation commands.
 * [kbcli kubeblocks describe-config](kbcli_kubeblocks_describe-config.md)	 - Describe KubeBlocks config.
 * [kbcli kubeblocks install](kbcli_kubeblocks_install.md)	 - Install KubeBlocks.
 * [kbcli kubeblocks list-versions](kbcli_kubeblocks_list-versions.md)	 - List KubeBlocks versions.
-* [kbcli kubeblocks preflight](kbcli_kubeblocks_preflight.md)	 - Run and retrieve preflight checks for KubeBlocks.
 * [kbcli kubeblocks status](kbcli_kubeblocks_status.md)	 - Show list of resource KubeBlocks uses or owns.
 * [kbcli kubeblocks uninstall](kbcli_kubeblocks_uninstall.md)	 - Uninstall KubeBlocks.
 * [kbcli kubeblocks upgrade](kbcli_kubeblocks_upgrade.md)	 - Upgrade KubeBlocks.

docs/user_docs/cli/kbcli_kubeblocks_install.md

@@ -17,9 +17,6 @@ kbcli kubeblocks install [flags]
   # Install KubeBlocks with specified version
   kbcli kubeblocks install --version=0.4.0
   
-  # Install KubeBlocks with ignoring preflight checks
-  kbcli kubeblocks install --force
-  
   # Install KubeBlocks with specified namespace, if the namespace is not present, it will be created
   kbcli kubeblocks install --namespace=my-namespace --create-namespace
   
@@ -32,7 +29,6 @@ kbcli kubeblocks install [flags]
 ```
       --check                        Check kubernetes environment before installation (default true)
       --create-namespace             Create the namespace if not present
-      --force                        If present, just print fail item and continue with the following steps
   -h, --help                         help for install
   -n, --namespace string             KubeBlocks namespace (default "kb-system")
       --node-labels stringToString   Node label selector (default [])