Release date not available for version cause filtering out

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Package ecosystem

gradle

### Package manager version

9.7.1

### Language version

Java 21

### Manifest location and content before the Dependabot update

/dependencies.gradle

### dependabot.yml content

- package-ecosystem: "gradle"
directories:
- "/"
schedule:
interval: "daily"

### Updated dependency

org.apache.cxf:cxf-rt-transports-http-jetty 4.2.2 -> 4.2.3

### What you expected to see, versus what you actually saw

Dependabot filter out new versions due to missing release date.
With such approach those libraries will be never updated by dependabot.
This start to happen after default cooldown introduced.

### Native package manager behavior

_No response_

### Images of the diff or a link to the PR, issue, or logs

Dependabot log:
2026-08-25T22:03:56.0544498Z updater | 2026/08/25 22:03:56 INFO Release date not available for version 4.2.3 - filtering out
2026-08-25T22:03:56.0546982Z 2026/08/25 22:03:56 INFO Filtered out (cooldown) : 4.2.3
2026-08-25T22:03:56.0548758Z updater | 2026/08/25 22:03:56 INFO Release date not available for version 4.2.3 - filtering out
2026-08-25T22:03:56.0551380Z updater | 2026/08/25 22:03:56 INFO Filtered out (cooldown) : 4.2.3
2026-08-25T22:03:56.0553007Z updater | 2026/08/25 22:03:56 INFO Release date not available for version 4.2.2 - filtering out
2026-08-25T22:03:56.0554305Z updater | 2026/08/25 22:03:56 INFO Filtered out (cooldown) : 4.2.2
2026-08-25T22:03:56.0557077Z updater | 2026/08/25 22:03:56 INFO Release date not available for version 4.2.2 - filtering out
2026-08-25T22:03:56.0560105Z 2026/08/25 22:03:56 INFO Filtered out (cooldown) : 4.2.2
2026-08-25T22:03:56.0561190Z 2026/08/25 22:03:56 INFO Release date not available for version 4.2.1 - filtering out
2026-08-25T22:03:56.0564109Z updater | 2026/08/25 22:03:56 INFO Filtered out (cooldown) : 4.2.1
2026-08-25T22:03:56.0565436Z 2026/08/25 22:03:56 INFO Release date not available for version 4.2.1 - filtering out
2026-08-25T22:03:56.0566926Z 2026/08/25 22:03:56 INFO Filtered out (cooldown) : 4.2.1

### Smallest manifest that reproduces the issue

_No response_