update kubernetes docker image after new image push with same or similar tag for renovate - kubernetes

Question

I am using renovate to update my kubernetes manifest files. the process should be as follow:
build and push docker image with tag registery.com/nginx:qa-main
run renovate
renovate should be able to update image tag inside the helm values.yaml
I have tried these configuration and they sometimes work and sometimes do not:
# renovate.json
{
"$schema": "https://docs.renovatebot.com/renovate-schema.json",
"extends": [
"config:base"
],
"regexManagers": [
{
"fileMatch": ["clusters\/dev\/charts\/renovate\/values\.yaml"],
"description": "Update docker image references",
"matchStrings": ["image: (?<depName>.*?):(?<currentValue>.*?)#(?<currentDigest>sha256:[a-f0-9]+)s"],
"datasourceTemplate": "docker"
}
],
"packageRules": [
{
"matchDatasources": ["docker"],
"matchUpdateTypes": [
"major"
],
"enabled": false
}
]
}
#renovate-config.js
module.exports = {
token: 'mytoken',
platform: 'github',
logLevel: 'debug',
labels: ['renovate', 'dependencies', 'automated'],
onboarding: true,
onboardingConfig: {
extends: ['config:base', '":dependencyDashboard"'],
},
baseBranches: [],
repositories: ['mycompany/myrepo'],
renovateFork: true,
gitAuthor: "mark <a.mark#mycompany.com>",
username: "Fettah",
onboarding: false,
printConfig: true,
requireConfig: false,
logFile: "renovate.log.json",
};
# values.yaml
image: fettah/nginx:qa-main#sha256:bbd1281091831284e9488b713ee2a29b6a54494cf3519e352faa589c221c0898