[emacs] update 7 drones

lib/diff-hl              master                     1.8.4-18-g154c64a
lib/exwm                 master                    0037cba
lib/flycheck             master                     31-120-g325d5cce
lib/magit-popup          master                    v2.12.3-3-g60ff82a
lib/notmuch              master                    debian/0.26.2-2-40-g51f3a078
lib/use-package          master                     2.3-378-gc03d153
lib/xelb                 master                    0a46cc6

diff --git a/lib/diff-hl b/lib/diff-hl
index 190622d..154c64a 160000 (submodule)
--- a/lib/diff-hl
+++ b/lib/diff-hl
@@ -1 +1 @@
-Subproject commit 190622d3fa2c3237529ec073a8fa00aee06023a1
+Subproject commit 154c64affe7bdd16da814d198277d29bd1b6bb2a

diff --git a/lib/exwm b/lib/exwm
index 87db8b4..0037cba 160000 (submodule)
--- a/lib/exwm
+++ b/lib/exwm
@@ -1 +1 @@
-Subproject commit 87db8b42a33876818ad8ee6b950c1f2aaa73d3d5
+Subproject commit 0037cba87b1ceefc3a65fa3c458aa685689e7e27

diff --git a/lib/flycheck b/lib/flycheck
index 0c4bbd1..325d5cc 160000 (submodule)
--- a/lib/flycheck
+++ b/lib/flycheck
@@ -1 +1 @@
-Subproject commit 0c4bbd1f8a48200a23bae365d2a6749a2e847717
+Subproject commit 325d5cce1135d86832439f0d542dd27feacb9498

diff --git a/lib/magit-popup b/lib/magit-popup
index 8d8ea37..60ff82a 160000 (submodule)
--- a/lib/magit-popup
+++ b/lib/magit-popup
@@ -1 +1 @@
-Subproject commit 8d8ea3775f502be721a6ab89911e055d4ceed50e
+Subproject commit 60ff82ac7aa8dbc24eb3c34dbed13ad01f20671c

diff --git a/lib/notmuch b/lib/notmuch
index a07b28a..51f3a07 160000 (submodule)
--- a/lib/notmuch
+++ b/lib/notmuch
@@ -1 +1 @@
-Subproject commit a07b28a488cd5d8f3d9dcf77401cc43ce6473138
+Subproject commit 51f3a0786f49a22beca2cb1d9f77fa0d560f4bdb

diff --git a/lib/use-package b/lib/use-package
index 0a2b82a..c03d153 160000 (submodule)
--- a/lib/use-package
+++ b/lib/use-package
@@ -1 +1 @@
-Subproject commit 0a2b82a508e27c28625487dc0a03a854fcb7e4b7
+Subproject commit c03d153e5882109e24c016d3afa6940af673ede6

diff --git a/lib/xelb b/lib/xelb
index aac6a74..0a46cc6 160000 (submodule)
--- a/lib/xelb
+++ b/lib/xelb
@@ -1 +1 @@
-Subproject commit aac6a74e2f8a7b579eec3f526a874dfa38bde4c3
+Subproject commit 0a46cc62a3a82dcaa1d1bf0929a5207260f635e3