[BUG] reconfigure painc when updating file

[sophon-zt]

$ kbcli cluster edit-config td5 --config-file=taos.cfg --replace --config-spec=tdengine-taos-config

2023-10-30T08:50:02.700Z	INFO	Observed a panic in reconciler: runtime error: invalid memory address or nil pointer dereference	{"controller": "opsrequest", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "OpsRequest", "OpsRequest": {"name":"td5-reconfiguring-tvxtv","namespace":"default"}, "namespace": "default", "name": "td5-reconfiguring-tvxtv", "reconcileID": "adf6d204-dc50-47c2-933e-57f599b1d2a8"}
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
	panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x16f58e0]

goroutine 598 [running]:
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Reconcile.func1()
	/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:115 +0x1a4
panic({0x19c3520?, 0x3367e50?})
	/usr/local/go/src/runtime/panic.go:914 +0x218
github.com/apecloud/kubeblocks/controllers/apps/operations.constructReconfiguringConditions({0x0, 0x0, 0x0, 0x0, {0x0, 0x0}}, 0x4002004e10, 0x400242bb00)
	/src/controllers/apps/operations/reconfigure_util.go:248 +0x40
github.com/apecloud/kubeblocks/controllers/apps/operations.(*reconfigureAction).Action(0x199d2a0?, {{0x21df200, 0x4002004d50}, {{{0x400226f8b0, 0x7}, {0x4001a6b0b0, 0x17}}}, {{0x21e40f8, 0x4002004db0}, 0x0}, ...}, ...)
	/src/controllers/apps/operations/reconfigure.go:201 +0x4ec
github.com/apecloud/kubeblocks/controllers/apps/operations.(*OpsManager).Do(0x40000cd080?, {{0x21df200, 0x4002004d50}, {{{0x400226f8b0, 0x7}, {0x4001a6b0b0, 0x17}}}, {{0x21e40f8, 0x4002004db0}, 0x0}, ...}, ...)
	/src/controllers/apps/operations/ops_manager.go:96 +0x448
github.com/apecloud/kubeblocks/controllers/apps.(*OpsRequestReconciler).doOpsRequestAction(0x4000af7590, {{0x21df200, 0x4002004d50}, {{{0x400226f8b0, 0x7}, {0x4001a6b0b0, 0x17}}}, {{0x21e40f8, 0x4002004db0}, 0x0}, ...}, ...)
	/src/controllers/apps/opsrequest_controller.go:247 +0xd4
github.com/apecloud/kubeblocks/controllers/apps.(*OpsRequestReconciler).handleOpsRequestByPhase(0x4000af7590?, {{0x21df200, 0x4002004d50}, {{{0x400226f8b0, 0x7}, {0x4001a6b0b0, 0x17}}}, {{0x21e40f8, 0x4002004db0}, 0x0}, ...}, ...)
	/src/controllers/apps/opsrequest_controller.go:148 +0x290
github.com/apecloud/kubeblocks/controllers/apps.(*opsControllerHandler).Handle(0x4002004d80?, {{0x21df200, 0x4002004d50}, {{{0x400226f8b0, 0x7}, {0x4001a6b0b0, 0x17}}}, {{0x21e40f8, 0x4002004db0}, 0x0}, ...}, ...)
	/src/controllers/apps/opsrequest_controller.go:361 +0xb8
github.com/apecloud/kubeblocks/controllers/apps.(*OpsRequestReconciler).Reconcile(0x4000af7590, {0x21df200, 0x4002004d50}, {{{0x400226f8b0, 0x7}, {0x4001a6b0b0, 0x17}}})
	/src/controllers/apps/opsrequest_controller.go:72 +0x2a8
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Reconcile(0x21df200?, {0x21df200?, 0x4002004d50?}, {{{0x400226f8b0?, 0x1887c20?}, {0x4001a6b0b0?, 0x4000ec7608?}}})
	/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:118 +0x8c
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler(0x4000699c20, {0x21df238, 0x400021cc30}, {0x1aa7960?, 0x40003ee020?})
	/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:314 +0x29c
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem(0x4000699c20, {0x21df238, 0x400021cc30})
	/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:265 +0x198
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2()
	/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:226 +0x74
created by sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2 in goroutine 47
	/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:222 +0x43c