Set 2.1.x (Fast DDS 2.13.x) as EOL (#224)

Signed-off-by: JesusPoderoso <[email protected]>

.github/pull_request_template.md

@@ -17,7 +17,7 @@
     In case of bug fixes, please provide the list of supported branches where this fix should be also merged.
     Please uncomment following line, adjusting the corresponding target branches for the backport.
 -->
-<!-- @Mergifyio backport 2.2.x 2.1.x 1.0.x -->
+<!-- @Mergifyio backport 2.2.x 1.0.x -->
 
 <!-- If an issue is already opened, please uncomment next line with the corresponding issue number. -->
 <!-- Fixes #(issue) -->

.github/workflows/codeql-analysis.yml

@@ -16,15 +16,13 @@ on:
     branches:
       - master
       - 2.2.x
-      - 2.1.x
       - 1.1.x
       - 1.0.x
   pull_request:
     # The branches below must be a subset of the branches above
     branches:
       - master
       - 2.2.x
-      - 2.1.x
       - 1.1.x
       - 1.0.x
   schedule:

RELEASE_SUPPORT.md

@@ -11,7 +11,6 @@ Please, refer to the [master branch](https://github.com/eProsima/Fast-CDR/blob/m
 |Fast DDS Version|Fast CDR Version|Fast CDR Version branch|Fast CDR Latest Release|
 |----------------|----------------|-----------------------|-----------------------|
 |2.14|2.2|[2.2.x](https://github.com/eProsima/Fast-CDR/tree/2.2.x)|[v2.2.2](https://github.com/eProsima/Fast-CDR/releases/tag/v2.2.2)|
-|2.13|2.1|[2.1.x](https://github.com/eProsima/Fast-CDR/tree/2.1.x)|[v2.1.3](https://github.com/eProsima/Fast-CDR/releases/tag/v2.1.3)|
 |2.10|1.0|[1.0.x](https://github.com/eProsima/Fast-CDR/tree/1.0.x)|[v1.0.28](https://github.com/eProsima/Fast-CDR/releases/tag/v1.0.28)|
 |2.6|1.0|[1.0.x](https://github.com/eProsima/Fast-CDR/tree/1.0.x)|[v1.0.28](https://github.com/eProsima/Fast-CDR/releases/tag/v1.0.28)|