Bump nightly version and dates for 124 cycle (#1390)

* Bump nightly version and dates for 124 cycle

* config: fix last merge date

Somehow this ended up 2013 instead of 2024 in commit 1661f15 "Config updates
for 123 nightly cycle".

api/src/shipit_api/common/config.py

@@ -49,17 +49,17 @@
 # e.g. version bumped, but still no builds available.
 #
 # This version also defines the mobile nightly version (i.e.: Fenix)
-FIREFOX_NIGHTLY = "123.0a1"
+FIREFOX_NIGHTLY = "124.0a1"
 
 # The next 6 dates are information about the current and next release
 # They must be updated at the same time as FIREFOX_NIGHTLY
 # They can be found on https://whattrainisitnow.com/calendar/
-LAST_SOFTFREEZE_DATE = "2023-12-14"
-LAST_MERGE_DATE = "2023-12-18"
-LAST_RELEASE_DATE = "2023-12-19"
-NEXT_SOFTFREEZE_DATE = "2024-01-11"
-NEXT_MERGE_DATE = "2013-01-22"
-NEXT_RELEASE_DATE = "2024-01-23"
+LAST_SOFTFREEZE_DATE = "2024-01-11"
+LAST_MERGE_DATE = "2024-01-22"
+LAST_RELEASE_DATE = "2024-01-23"
+NEXT_SOFTFREEZE_DATE = "2024-02-15"
+NEXT_MERGE_DATE = "2024-02-19"
+NEXT_RELEASE_DATE = "2024-02-20"
 
 DATE_FORMAT = "%Y-%m-%d"
 LAST_STRINGFREEZE_DATE = (datetime.strptime(LAST_SOFTFREEZE_DATE, DATE_FORMAT) + timedelta(days=1)).strftime(DATE_FORMAT)
@@ -75,7 +75,7 @@
 
 # Thunderbird configs
 LATEST_THUNDERBIRD_ALPHA_VERSION = "54.0a2"
-LATEST_THUNDERBIRD_NIGHTLY_VERSION = "123.0a1"
+LATEST_THUNDERBIRD_NIGHTLY_VERSION = "124.0a1"
 # TODO: Need to update this every cycle
 THUNDERBIRD_RELEASE_BRANCH = "releases/comm-esr115"
 THUNDERBIRD_BETA_BRANCH = "releases/comm-beta"