Merge bitcoin/bitcoin#33573: doc: bump the template macOS version

f656752 doc: bump the template macOS version (kevkevinpal)

Pull request description:

  Motivated by bitcoin/bitcoin#33489 (comment)

  The minimum version of MacOS for this repo is now 14 and above so it makes sense to update the issue template to reflect that.
  We are now using a higher version but since it is just a bug template, there is no need to put the lowest version we support.

ACKs for top commit:
  maflcko:
    lgtm ACK f656752
  l0rinc:
    ACK f656752
  janb84:
    ACK f656752

Tree-SHA512: 701b161bda25245996c94b6d2119b5cc85a34917551dcf8c92ffacf3aa80fa7fe84bb3497edc7e600c5b2443de13a6f6107fc7289721e585b16c4972d07a796c

Author: fanquake

.github/ISSUE_TEMPLATE/bug.yml

@@ -78,7 +78,7 @@ body:
     id: os
     attributes:
       label: Operating system and version
-      placeholder: e.g. "MacOS Ventura 13.2" or "Ubuntu 22.04 LTS"
+      placeholder: e.g. "MacOS 26.0" or "Ubuntu 26.04 LTS"
     validations:
       required: true
   - type: textarea
@@ -90,4 +90,3 @@ body:
         e.g. OS/CPU and disk type, network connectivity
     validations:
       required: false
-