Add t-bast's GPG key to SECURITY.md (#2621)

Author: t-bast

SECURITY.md

@@ -10,12 +10,14 @@ The following keys may be used to communicate sensitive information to developer
 |---------------------|---------------------------------------------------|
 | Pierre-Marie Padiou | 6AA4 5A4C 209A 2D30 64CF 66BE E434 ED29 2E85 643A |
 | Fabrice Drouin      | C25A 288A 842E AF7A A5B5 303F 7A73 FE77 DE2C 4027 |
+| Bastien Teinturier  | 72BD 8AD9 F656 1619 37FA 8A5D 34F3 77B0 100E D6BB |
 
 You can import keys by running the following commands:
 
 ```sh
 gpg --keyserver https://acinq.co/pgp/padioupm.asc --recv-keys "6AA4 5A4C 209A 2D30 64CF 66BE E434 ED29 2E85 643A"
 gpg --keyserver https://acinq.co/pgp/drouinf.asc --recv-keys "C25A 288A 842E AF7A A5B5 303F 7A73 FE77 DE2C 4027"
+gpg --keyserver https://acinq.co/pgp/tbast.asc --recv-keys "72BD 8AD9 F656 1619 37FA 8A5D 34F3 77B0 100E D6BB"
 ```
 
 Ensure that you put quotes around fingerprints containing spaces.