libcper: use https protocol

Recipes should use an anonymous access method (like https), so adjust
the SRC_URI to match the pattern of all our other recipes.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I0d8e78088fc9e8986bbf8eb80dbf0297aa72d175
diff --git a/meta-phosphor/recipes-phosphor/libcper/libcper_git.bb b/meta-phosphor/recipes-phosphor/libcper/libcper_git.bb
index 0e402d8..e79d70e 100644
--- a/meta-phosphor/recipes-phosphor/libcper/libcper_git.bb
+++ b/meta-phosphor/recipes-phosphor/libcper/libcper_git.bb
@@ -10,7 +10,7 @@
 PV = "1.0+git${SRCPV}"
 SRCREV = "5220c9bdacd3dac0c4ad6ee39241849262589197"
 
-SRC_URI = "git://git@github.com/openbmc/libcper.git;protocol=ssh;branch=main"
+SRC_URI = "git://github.com/openbmc/libcper.git;protocol=https;branch=main"
 
 S = "${WORKDIR}/git"