sysadm/issue-templates: Mentions to drop the unnecessary actions

.gitlab/issue_templates/deploy-new-stack-in-production.md

@@ -4,6 +4,8 @@
 
 /labels ~"activity::Deployment"
 
+*Note* This proposes a plan to deploy the new stack in production. Please,
+drop the unneeded actions from the plan.
 
 - [ ] [swh-charts](https://gitlab.softwareheritage.org/swh/infra/ci-cd/swh-charts/-/blob/production/swh/values/production.yaml?ref_type=heads#L126): Checkout production branch
 - [ ] [swh-charts](https://gitlab.softwareheritage.org/swh/infra/ci-cd/swh-charts/-/blob/production/swh/values/production.yaml?ref_type=heads#L143): Adapt values to reference the new lister and loader (equivalent to what was done for staging)

.gitlab/issue_templates/deploy-new-stack-in-staging.md

@@ -4,6 +4,8 @@
 
 /labels ~"activity::Deployment"
 
+*Note* This proposes a plan to deploy the new stack in staging. Please, drop
+the unneeded actions from the plan.
 
 - [ ] [swh-apps](https://gitlab.softwareheritage.org/swh/infra/swh-apps/-/tree/master/apps?ref_type=heads): Build image (if required)
 - [ ] [swh-charts](https://gitlab.softwareheritage.org/swh/infra/ci-cd/swh-charts/-/blob/staging/values-swh-application-versions.yaml?ref_type=heads): Reference new image (if required)

.gitlab/issue_templates/deploy-new-stack-version.md

@@ -4,6 +4,8 @@
 
 /labels ~"activity::Deployment"
 
+*Note* This proposes a plan to deploy a new version for a given stack (Arch
+Linux, AUR, ...). Please, drop the unneeded actions from the plan.
 
 
 staging:

.gitlab/issue_templates/deploy-next-swh-version.md

@@ -4,6 +4,8 @@
 
 /labels ~"activity::Deployment"
 
+*Note* This proposes a plan to deploy the next swh version. Please, drop the
+unneeded actions from the plan.
 
 Actions:
 - [ ] Tags all impacted modules