github/issue_template: clarify "latest mpv version"

At the issue templates "tested with the latest version" checkbox, make
that a link to the latest version, revise the text slightly, and add
"or newer".

At the linux issue template, also note that if the distro does not
provide the latest version, then the issue should be reported to them.

.github/ISSUE_TEMPLATE/2_bug_report_linux.yml

@@ -40,7 +40,9 @@ body:
            - The time when the problem started to happen (after updating mpv, system, driver, etc.)
            - Possible screenshot or video of visual glitches
 
-          If you're not using git master or the latest release, update.
+          If you're not using the git master branch or the [latest release](https://github.com/mpv-player/mpv/releases/latest), please update.
+          Older versions are not supported. If your distribution does not provide the latest version, please report the issue to them.
+
           Packages and builds can be found [here](https://mpv.io/installation/).
       value: |-
           - Linux version:
@@ -140,7 +142,7 @@ body:
   attributes:
       label: "I carefully read all instruction and confirm that I did the following:"
       options:
-          - label: "I tested with the latest mpv version to validate that the issue is not already fixed."
+          - label: "I tested and confirmed that the issue exists with the [latest release version](https://github.com/mpv-player/mpv/releases/latest) or newer."
             required: true
           - label: "I provided all required information including system and mpv version."
             required: true

.github/ISSUE_TEMPLATE/2_bug_report_macos.yml

@@ -135,7 +135,7 @@ body:
   attributes:
       label: "I carefully read all instruction and confirm that I did the following:"
       options:
-          - label: "I tested with the latest mpv version to validate that the issue is not already fixed."
+          - label: "I tested and confirmed that the issue exists with the [latest release version](https://github.com/mpv-player/mpv/releases/latest) or newer."
             required: true
           - label: "I provided all required information including system and mpv version."
             required: true

.github/ISSUE_TEMPLATE/2_bug_report_windows.yml

@@ -136,7 +136,7 @@ body:
   attributes:
       label: "I carefully read all instruction and confirm that I did the following:"
       options:
-          - label: "I tested with the latest mpv version to validate that the issue is not already fixed."
+          - label: "I tested and confirmed that the issue exists with the [latest release version](https://github.com/mpv-player/mpv/releases/latest) or newer."
             required: true
           - label: "I provided all required information including system and mpv version."
             required: true

.github/ISSUE_TEMPLATE/3_bug_report.yml

@@ -133,7 +133,7 @@ body:
   attributes:
       label: "I carefully read all instruction and confirm that I did the following:"
       options:
-          - label: "I tested with the latest mpv version to validate that the issue is not already fixed."
+          - label: "I tested and confirmed that the issue exists with the [latest release version](https://github.com/mpv-player/mpv/releases/latest) or newer."
             required: true
           - label: "I provided all required information including system and mpv version."
             required: true

.github/ISSUE_TEMPLATE/4_bug_report_build.yml

@@ -60,7 +60,7 @@ body:
   attributes:
       label: "I carefully read all instruction and confirm that I did the following:"
       options:
-          - label: "I tested with the latest mpv version to validate that the issue is not already fixed."
+          - label: "I tested and confirmed that the issue exists with the [latest release version](https://github.com/mpv-player/mpv/releases/latest) or newer."
             required: true
           - label: "I provided all required information including system and mpv version."
             required: true