doc/spec: use --field-manager in kubectl examples

To align with:
https://fluxcd.io/docs/faq/#why-are-kubectl-edits-rolled-back-by-flux

Signed-off-by: Hidde Beydals <[email protected]>

Author: hiddeco

docs/spec/v1beta2/buckets.md

@@ -637,7 +637,7 @@ the last value the controller acted on, as reported in
 Using `kubectl`:
 
 ```sh
-kubectl annotate --overwrite bucket/<bucket-name> reconcile.fluxcd.io/requestedAt="$(date +%s)"
+kubectl annotate --field-manager=flux-client-side-apply --overwrite  bucket/<bucket-name> reconcile.fluxcd.io/requestedAt="$(date +%s)"
 ```
 
 Using `flux`:
@@ -678,7 +678,7 @@ spec:
 Using `kubectl`:
 
 ```sh
-kubectl patch bucket <bucket-name> -p '{\"spec\": {\"suspend\" : true }}'
+kubectl patch bucket <bucket-name> --field-manager=flux-client-side-apply -p '{\"spec\": {\"suspend\" : true }}'
 ```
 
 Using `flux`:
@@ -714,7 +714,7 @@ state in Git.
 Using `kubectl`:
 
 ```sh
-kubectl patch bucket <bucket-name> -p '{\"spec\" : {\"suspend\" : false }}'
+kubectl patch bucket <bucket-name> --field-manager=flux-client-side-apply -p '{\"spec\" : {\"suspend\" : false }}'
 ```
 
 Using `flux`:

docs/spec/v1beta2/gitrepositories.md

@@ -492,7 +492,7 @@ from the last value the controller acted on, as reported in
 Using `kubectl`:
 
 ```sh
-kubectl annotate --overwrite gitrepository/<repository-name> reconcile.fluxcd.io/requestedAt="$(date +%s)"
+kubectl annotate --field-manager=flux-client-side-apply --overwrite gitrepository/<repository-name> reconcile.fluxcd.io/requestedAt="$(date +%s)"
 ```
 
 Using `flux`:
@@ -533,7 +533,7 @@ spec:
 Using `kubectl`:
 
 ```sh
-kubectl patch gitrepository <repository-name> -p '{\"spec\": {\"suspend\" : true }}'
+kubectl patch gitrepository <repository-name> --field-manager=flux-client-side-apply -p '{\"spec\": {\"suspend\" : true }}'
 ```
 
 Using `flux`:
@@ -569,7 +569,7 @@ state in Git.
 Using `kubectl`:
 
 ```sh
-kubectl patch gitrepository <repository-name> -p '{\"spec\" : {\"suspend\" : false }}'
+kubectl patch gitrepository <repository-name> --field-manager=flux-client-side-apply -p '{\"spec\" : {\"suspend\" : false }}'
 ```
 
 Using `flux`:

docs/spec/v1beta2/helmcharts.md

@@ -248,7 +248,7 @@ the last value the controller acted on, as reported in
 Using `kubectl`:
 
 ```sh
-kubectl annotate --overwrite helmchart/<chart-name> reconcile.fluxcd.io/requestedAt="$(date +%s)"
+kubectl annotate --field-manager=flux-client-side-apply --overwrite helmchart/<chart-name> reconcile.fluxcd.io/requestedAt="$(date +%s)"
 ```
 
 ### Waiting for `Ready`
@@ -283,7 +283,7 @@ spec:
 Using `kubectl`:
 
 ```sh
-kubectl patch helmchart <chart-name> -p '{\"spec\": {\"suspend\" : true }}'
+kubectl patch helmchart <chart-name> --field-manager=flux-client-side-apply -p '{\"spec\": {\"suspend\" : true }}'
 ```
 
 **Note:** When a HelmChart has an Artifact and is suspended, and this
@@ -313,7 +313,7 @@ state in Git.
 Using `kubectl`:
 
 ```sh
-kubectl patch helmchart <chart-name> -p '{\"spec\" : {\"suspend\" : false }}'
+kubectl patch helmchart <chart-name> --field-manager=flux-client-side-apply -p '{\"spec\" : {\"suspend\" : false }}'
 ```
 
 ### Debugging a HelmChart

docs/spec/v1beta2/helmrepositories.md

@@ -218,7 +218,7 @@ the last value the controller acted on, as reported in
 Using `kubectl`:
 
 ```sh
-kubectl annotate --overwrite helmrepository/<repository-name> reconcile.fluxcd.io/requestedAt="$(date +%s)"
+kubectl annotate --field-manager=flux-client-side-apply --overwrite helmrepository/<repository-name> reconcile.fluxcd.io/requestedAt="$(date +%s)"
 ```
 
 Using `flux`:
@@ -259,7 +259,7 @@ spec:
 Using `kubectl`:
 
 ```sh
-kubectl patch helmrepository <repository-name> -p '{\"spec\": {\"suspend\" : true }}'
+kubectl patch helmrepository <repository-name> --field-manager=flux-client-side-apply -p '{\"spec\": {\"suspend\" : true }}'
 ```
 
 Using `flux`:
@@ -295,7 +295,7 @@ state in Git.
 Using `kubectl`:
 
 ```sh
-kubectl patch helmrepository <repository-name> -p '{\"spec\" : {\"suspend\" : false }}'
+kubectl patch helmrepository <repository-name> --field-manager=flux-client-side-apply -p '{\"spec\" : {\"suspend\" : false }}'
 ```
 
 Using `flux`: