Update tzdata to 2023c

This is effectively identical to 2023a, because of the chaos around
Lebanon's short notice DST change.

NEWS.md

@@ -1,3 +1,13 @@
+# Version 2023.3
+Upstream version 2023c released 2023-03-28T19:42:14+00:00
+
+## Changes to past and future timestamps
+
+Model Lebanon's DST chaos by reverting data to tzdb 2023a. (Thanks to Rany Hany
+for the heads-up.)
+
+---
+
 # Version 2023.2
 Upstream version 2023b released 2023-03-24T02:50:38+00:00
 

VERSION

@@ -1 +1 @@
-2023.2
+2023.3

news.d/2023c.md

@@ -0,0 +1,7 @@
+# Version 2023.3
+Upstream version 2023c released 2023-03-28T19:42:14+00:00
+
+## Changes to past and future timestamps
+
+Model Lebanon's DST chaos by reverting data to tzdb 2023a. (Thanks to Rany Hany
+for the heads-up.)

src/tzdata/__init__.py

@@ -1,6 +1,6 @@
 # IANA versions like 2020a are not valid PEP 440 identifiers; the recommended
 # way to translate the version is to use YYYY.n where `n` is a 0-based index.
-__version__ = "2023.2"
+__version__ = "2023.3"
 
 # This exposes the original IANA version number.
-IANA_VERSION = "2023b"
+IANA_VERSION = "2023c"

src/tzdata/zoneinfo/tzdata.zi

@@ -1,4 +1,4 @@
-# version 2023b
+# version 2023c
 # This zic input file is in the public domain.
 R d 1916 o - Jun 14 23s 1 S
 R d 1916 1919 - O Su>=1 23s 0 -
@@ -920,11 +920,9 @@ R l 1988 o - Jun 1 0 1 S
 R l 1989 o - May 10 0 1 S
 R l 1990 1992 - May 1 0 1 S
 R l 1992 o - O 4 0 0 -
-R l 1993 2022 - Mar lastSu 0 1 S
+R l 1993 ma - Mar lastSu 0 1 S
 R l 1993 1998 - S lastSu 0 0 -
 R l 1999 ma - O lastSu 0 0 -
-R l 2023 o - Ap 21 0 1 S
-R l 2024 ma - Mar lastSu 0 1 S
 Z Asia/Beirut 2:22 - LMT 1880
 2 l EE%sT
 R NB 1935 1941 - S 14 0 0:20 -